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DESCENT

™

MK1

Owner’s Manual

products and to make changes in the content of this manual without obligation to notify any person or organization of such changes or improvements. Go to www.garmin.com for current updates

and supplemental information concerning the use of this product.

Garmin

, the Garmin logo, ANT+

, Auto Lap

, Auto Pause

, Edge

, inReach

, TracBack

, VIRB

, and Virtual Partner

are trademarks of Garmin Ltd. or its subsidiaries, registered in the USA and

other countries. Connect IQ

™

, Descent

™

, Garmin Connect

™

, Garmin Express

™

, Garmin Golf

™

, Garmin Move IQ

™

, HRM-Run

™

, HRM-Tri

™

, QuickFit

™

, tempe

™

, TruSwing

™

, TrueUp

™

, Varia

™

, Varia

Vision

™

, and Vector

™

are trademarks of Garmin Ltd. or its subsidiaries. These trademarks may not be used without the express permission of Garmin.

American Heart Association

is a registered trademark of American Heart Association, Inc. Android

™

is a trademark of Google Inc. Apple

and Mac

are trademarks of Apple Inc., registered in the

U.S. and other countries. The Bluetooth

word mark and logos are owned by the Bluetooth SIG, Inc. and any use of such marks by Garmin is under license. The Cooper Institute

, as well as any

related trademarks, are the property of The Cooper Institute. Di2

™

is a trademark of Shimano, Inc. Shimano

is a registered trademark of Shimano, Inc. STRAVA and Strava

™

are trademarks of

Strava, Inc. Advanced heartbeat analytics by Firstbeat. Training Stress Score

™

(TSS), Intensity Factor

™

(IF), and Normalized Power

™

(NP) are trademarks of Peaksware, LLC. Wi‑Fi

is a

registered mark of Wi-Fi Alliance Corporation. Windows

is a registered trademark of Microsoft Corporation in the United States and other countries. Other trademarks and trade names are those

of their respective owners.

This product is ANT+

certified. Visit www.thisisant.com/directory for a list of compatible products and apps.

Table of Contents

Introduction.....................................................................1

Device Overview......................................................................... 1

Viewing the Controls Menu.................................................... 1

Viewing Widgets.................................................................... 1

Charging the Device................................................................... 1

Pairing Your Smartphone with Your Device............................... 1

Product Updates......................................................................... 2

Setting Up Garmin Express................................................... 2

Diving.............................................................................. 2

Dive Warnings............................................................................ 2

Dive Modes................................................................................. 2

Using the Pool Dive Mode..................................................... 2

Dive Setup.................................................................................. 2

Starting a Dive............................................................................ 3

Dive Data Screens...................................................................... 3

Viewing the Primary Gas Dive Data Screen.......................... 3

Navigating with the Dive Compass........................................ 3

Viewing Additional Gas Dive Data......................................... 4

Using the Dive Stopwatch...................................................... 4

Diving with the Map................................................................4

Viewing the Surface Interval Widget........................................... 4

Viewing the Dive Log Widget...................................................... 4

Dive Planning..............................................................................4

Calculating NDL Time............................................................ 4

Creating a Decompression Plan............................................ 5

Viewing and Applying a Decompression Plan....................... 5

Editing a Decompression Plan............................................... 5

Deleting a Decompression Plan.............................................5

No-Fly Time................................................................................ 5

Tips for Wearing the Device with an Exposure Suit................... 5

Dive Alerts.................................................................................. 5

Activities and Apps........................................................ 6

Starting an Activity...................................................................... 6

Tips for Recording Activities.................................................. 6

Stopping an Activity.................................................................... 6

Adding or Removing a Favorite Activity...................................... 6

Creating a Custom Activity......................................................... 6

Indoor Activities.......................................................................... 6

Calibrating the Treadmill Distance......................................... 7

Recording a Strength Training Activity...................................7

Outdoor Activities........................................................................7

Viewing Your Ski Runs.......................................................... 7

Using the Metronome.............................................................7

Jumpmaster........................................................................... 7

Multisport.................................................................................... 7

Creating a Multisport Activity................................................. 7

Tips for Triathlon Training or Using Multisport Activities........ 8

Swimming................................................................................... 8

Swim Terminology................................................................. 8

Stroke Types.......................................................................... 8

Tips for Swimming Activities.................................................. 8

Resting During Pool Swimming............................................. 8

Training with the Drill Log...................................................... 8

Golfing........................................................................................ 8

Playing Golf............................................................................8

Hole Information.....................................................................8

Moving the Flag..................................................................... 9

Viewing Hazards.................................................................... 9

Viewing Measured Shots....................................................... 9

Viewing Layup and Dogleg Distances................................... 9

Keeping Score....................................................................... 9

Updating a Score................................................................... 9

TruSwing™............................................................................ 9

Using the Golf Odometer

....................................................... 9

Tracking Statistics.................................................................. 9

Connected Features....................................................... 9

Enabling Bluetooth Notifications................................................. 9

Viewing Notifications............................................................ 10

Receiving an Incoming Phone Call...................................... 10

Replying to a Text Message................................................ 10

Managing Notifications.........................................................10

Turning Off the Bluetooth Smartphone Connection.................. 10

Turning On and Off Smartphone Connection Alerts................. 10

Locating a Lost Mobile Device.................................................. 10

Garmin Connect........................................................................10

Updating the Software Using Garmin Connect Mobile........ 11

Updating the Software Using Garmin Express.................... 11

Using Garmin Connect on Your Computer..................... 11

Manually Syncing Data with Garmin Connect Mobile.......... 11

Garmin Golf™ App...............................................................11

Starting a GroupTrack Session.................................................11

Tips for GroupTrack Sessions............................................. 11

Wi‑Fi® Connected Features........................................ 11

Connecting to a Wi‑Fi Network................................................. 11

Connect IQ Features.................................................... 12

Downloading Connect IQ Features Using Your Computer....... 12

Heart Rate Features..................................................... 12

Wrist-based Heart Rate............................................................ 12

Wearing the Device..............................................................12

Tips for Erratic Heart Rate Data...........................................12

Viewing the Heart Rate Widget............................................ 12

Broadcasting Heart Rate Data to Garmin Devices.............. 12

Broadcasting Heart Rate Data During an Activity........... 12

Setting an Abnormal Heart Rate Alert................................. 13

Turning Off the Wrist-based Heart Rate Monitor................. 13

Putting On the Heart Rate Monitor........................................... 13

Tips for Erratic Heart Rate Data...........................................13

Caring for the Heart Rate Monitor........................................ 13

Running Dynamics....................................................................13

Training with Running Dynamics......................................... 13

Color Gauges and Running Dynamics Data........................ 14

Ground Contact Time Balance Data............................... 14

Vertical Oscillation and Vertical Ratio Data.....................14

Tips for Missing Running Dynamics Data............................ 14

Performance Measurements.................................................... 14

Turning Off Performance Notifications................................. 15

Detecting Performance Measurements Automatically......... 15

Syncing Activities and Performance Measurements........... 15

Training Status..................................................................... 15

Tips for Getting Your Training Status.............................. 15

About VO2 Max. Estimates.................................................. 16

Getting Your VO2 Max. Estimate for Running................ 16

Getting Your VO2 Max. Estimate for Cycling.................. 16

Recovery Time..................................................................... 16

Viewing Your Recovery Time.......................................... 16

Recovery Heart Rate........................................................... 16

Training Load....................................................................... 16

Viewing Your Predicted Race Times................................... 17

About Training Effect........................................................... 17

Heart Rate Variability and Stress Level............................... 17

Viewing Your Heart Rate Variability and Stress Level.... 17

Performance Condition........................................................ 17

Viewing Your Performance Condition............................. 17

Lactate Threshold................................................................ 17

Performing a Guided Test to Determine Your Lactate

Threshold........................................................................ 18

Getting Your FTP Estimate.................................................. 18

Conducting an FTP Test................................................. 18

Table of Contents i

Training......................................................................... 18

Setting Up Your User Profile.....................................................18

Fitness Goals....................................................................... 18

About Heart Rate Zones...................................................... 18

Setting Your Heart Rate Zones....................................... 18

Letting the Device Set Your Heart Rate Zones............... 19

Heart Rate Zone Calculations......................................... 19

Setting Your Power Zones................................................... 19

Activity Tracking........................................................................19

Auto Goal............................................................................. 19

Using the Move Alert............................................................19

Sleep Tracking..................................................................... 20

Using Automated Sleep Tracking....................................20

Using Do Not Disturb Mode............................................ 20

Intensity Minutes.................................................................. 20

Earning Intensity Minutes................................................ 20

Garmin Move IQ™............................................................... 20

Activity Tracking Settings..................................................... 20

Turning Off Activity Tracking........................................... 20

Workouts...................................................................................20

Following a Workout From the Web.....................................20

Starting a Workout............................................................... 20

About the Training Calendar................................................ 20

Using Garmin Connect Training Plans............................ 21

Adaptive Training Plans.................................................. 21

Interval Workouts...................................................................... 21

Creating an Interval Workout............................................... 21

Starting an Interval Workout................................................ 21

Stopping an Interval Workout...............................................21

Segments..................................................................................21

Strava™ Segments.............................................................. 21

Viewing Segment Details..................................................... 21

Racing a Segment............................................................... 21

Using Virtual Partner®.............................................................. 21

Setting a Training Target.......................................................... 22

Cancelling a Training Target................................................ 22

Racing a Previous Activity........................................................ 22

Personal Records..................................................................... 22

Viewing Your Personal Records.......................................... 22

Restoring a Personal Record............................................... 22

Clearing a Personal Record................................................. 22

Clearing All Personal Records............................................. 22

Clock.............................................................................. 22

Setting an Alarm....................................................................... 22

Deleting an Alarm................................................................ 22

Starting the Countdown Timer.................................................. 22

Using the Stopwatch................................................................. 23

Setting Clock Alerts.................................................................. 23

Syncing the Time with GPS...................................................... 23

Navigation..................................................................... 23

Saving Your Location............................................................... 23

Editing Your Saved Locations.............................................. 23

Projecting a Waypoint............................................................... 23

Navigating to a Destination....................................................... 23

Navigating to a Point of Interest............................................... 23

Points of Interest.................................................................. 23

Creating and Following a Course on Your Device.................... 23

Creating a Round-Trip Course..................................................24

Marking and Starting Navigation to a Man Overboard

Location.................................................................................... 24

Navigating with Sight 'N Go...................................................... 24

Navigating to Your Starting Point During an Activity................ 24

Navigating to the Starting Point of Your Last Saved Activity.... 24

Stopping Navigation................................................................. 24

Map........................................................................................... 24

Viewing the Map.................................................................. 24

Saving or Navigating to a Location on the Map

................... 24

Navigating with the Around Me Feature.............................. 25

Compass...................................................................................25

Altimeter and Barometer........................................................... 25

History........................................................................... 25

Using History............................................................................ 25

Multisport History................................................................. 25

Viewing Your Time in Each Heart Rate Zone...................... 25

Viewing Data Totals.................................................................. 25

Using the Odometer..................................................................25

Deleting History........................................................................ 25

Customizing Your Device............................................ 26

Activities and App Settings....................................................... 26

Customizing the Data Screens............................................ 26

Adding a Map to an Activity................................................. 26

Alerts.................................................................................... 26

Setting an Alert................................................................27

Activity Map Settings............................................................27

Routing Settings...................................................................27

Auto Lap...............................................................................27

Marking Laps by Distance............................................... 27

Enabling Auto Pause®......................................................... 28

Enabling Auto Climb............................................................ 28

3D Speed and Distance....................................................... 28

Turning On and Off the Lap Key.......................................... 28

Using Auto Scroll................................................................. 28

UltraTrac.............................................................................. 28

Power Save Timeout Settings..............................................28

Changing the Order of an Activity in the Apps List................... 28

Widgets..................................................................................... 28

Customizing the Widget Loop.............................................. 29

inReach Remote.................................................................. 29

Using the inReach Remote............................................. 29

VIRB Remote....................................................................... 29

Controlling a VIRB Action Camera.................................. 29

Controlling a VIRB Action Camera During an Activity..... 29

Using the Stress Level Widget............................................. 29

Customizing the Controls Menu................................................30

Watch Face Settings.................................................................30

Customizing the Watch Face............................................... 30

Sensors Settings.......................................................................30

Compass Settings................................................................ 30

Calibrating the Compass Manually................................. 30

Setting the North Reference............................................30

Altimeter Settings................................................................. 30

Calibrating the Barometric Altimeter............................... 30

Barometer Settings.............................................................. 31

Calibrating the Barometer............................................... 31

Map Settings............................................................................. 31

Marine Map Settings............................................................ 31

Showing and Hiding Map Data............................................ 31

GroupTrack Settings................................................................. 31

Navigation Settings................................................................... 31

Customizing Map Features.................................................. 31

Setting Up a Heading Bug................................................... 31

Setting Navigation Alerts......................................................31

System Settings........................................................................ 31

Time Settings....................................................................... 32

Changing the Backlight Settings.......................................... 32

Customizing the Hot Keys....................................................32

Changing the Units of Measure........................................... 32

Viewing Device Information...................................................... 32

Viewing E-label Regulatory and Compliance Information.... 32

Wireless Sensors......................................................... 32

Pairing Your Wireless Sensors................................................. 32

ii Table of Contents

Extended Display Mode............................................................ 33

Using an Optional Bike Speed or Cadence Sensor.................. 33

Training with Power Meters...................................................... 33

Using Electronic Shifters...........................................................33

Situational Awareness.............................................................. 33

Foot Pod................................................................................... 33

Improving Foot Pod Calibration........................................... 33

Calibrating Your Foot Pod Manually.................................... 33

Setting Foot Pod Speed and Distance................................. 33

tempe™.................................................................................... 33

Device Information....................................................... 33

Descent Mk1 Specifications......................................................33

Battery Information...............................................................34

Data Management.................................................................... 34

Disconnecting the USB Cable..............................................34

Deleting Files....................................................................... 34

Device Maintenance..................................................... 34

Device Care.............................................................................. 34

Cleaning the Device............................................................. 34

Changing the QuickFit™ Bands............................................... 34

Extra Long Diving Band............................................................ 34

Metal Watch Band Adjustment................................................. 34

Troubleshooting........................................................... 34

My device is in the wrong language......................................... 34

Is my smartphone compatible with my device?........................ 34

My phone will not connect to the device................................... 35

Can I use my Bluetooth sensor with my watch?....................... 35

Restarting Your Device............................................................. 35

Restoring All Default Settings................................................... 35

Resetting Your Tissue Load..................................................... 35

Acquiring Satellite Signals........................................................ 35

Improving GPS Satellite Reception......................................35

The temperature reading is not accurate.................................. 35

Maximizing the Battery Life.......................................................35

Activity Tracking........................................................................35

My daily step count does not appear................................... 35

My step count does not seem accurate............................... 36

The step counts on my device and my Garmin Connect

account don't match............................................................. 36

The floors climbed amount does not seem accurate........... 36

My intensity minutes are flashing......................................... 36

Getting More Information.......................................................... 36

Appendix....................................................................... 36

Data Fields................................................................................36

VO2 Max. Standard Ratings..................................................... 39

FTP Ratings.............................................................................. 40

Wheel Size and Circumference................................................ 40

Symbol Definitions.................................................................... 40

Index.............................................................................. 42

Table of Contents iii

Introduction

WARNING

See the Important Safety and Product Information guide in the

product box for product warnings and other important

information.

Always consult your physician before you begin or modify any

exercise program.

Device Overview

LIGHT

Select to turn the backlight on and off.

Hold to view the controls menu.

Hold to turn the device on.

NOTE: While diving, hold functions are disabled.

Select to view the activity list and start or stop an activity.

Select to choose an option in a menu.

Select for the dive compass, stopwatch, or gas switching

during a dive.

BACK

Select to return to the previous screen.

Select to record a lap, rest, or transition during a multisport

activity.

NOTE: While diving, key presses are enabled only in menus.

DOWN

Select to scroll through the widget loop and menus.

Select to scroll through the data screens during a dive.

Hold to view the watch face from any screen.

Select to scroll through the widget loop and menus.

Hold to view the menu.

NOTE: While diving, key presses are disabled.

Double tap the device to scroll through the data screens during

a dive.

Viewing the Controls Menu

The controls menu contains options, such as turning on do not

disturb mode, locking the keys, and turning the device off.

NOTE: You can add, reorder, and remove the options in the

controls menu (Customizing the Controls Menu, page 30).

From any screen, hold LIGHT.

Select UP or DOWN to scroll through the options.

Viewing Widgets

Your device comes preloaded with several widgets, and more

are available when you pair your device with a smartphone.

• Select UP or DOWN.

The device scrolls through the widget loop.

• Select to view additional options and functions for a

widget.

• From any screen, hold BACK to return to the watch face.

• If you are recording an activity, select BACK to return to the

activity data pages.

Charging the Device

NOTICE

To prevent corrosion, thoroughly clean and dry the contacts and

the surrounding area before charging or connecting to a

computer. Refer to the cleaning instructions in the appendix.

The device is powered by a built-in lithium-ion battery that you

can charge using a standard wall outlet or a USB port on your

computer.

Plug the USB end of the cable into an AC adapter or a

computer USB port.

If necessary, plug the AC adapter into a standard wall outlet.

Pinch the sides of the charging cradle to open the arms on

the cradle.

With the contacts aligned, place the device into the cradle

and release the arms to hold the device in place.

When you connect the device to a power source, the device

turns on, and the battery charge level appears on the screen.

Charge the device completely.

Pairing Your Smartphone with Your Device

To use the connected features of the Descent device, it must be

paired directly through the Garmin Connect

™

Mobile app,

instead of from the Bluetooth

settings on your smartphone.

From the app store on your smartphone, install and open the

Garmin Connect Mobile app.

Bring your smartphone within 10 m (33 ft.) of your device.

Select LIGHT to turn on the device.

The first time you turn on the device, it is in pairing mode.

TIP: You can hold LIGHT and select to manually enter

pairing mode.

Select an option to add your device to your Garmin Connect

account:

• If this is the first time you are pairing a device with the

Garmin Connect Mobile app, follow the on-screen

instructions.

• If you already paired another device with the Garmin

Connect Mobile app, from the or menu, select

Garmin Devices > Add Device, and follow the on-screen

instructions.

Introduction 1

Product Updates

On your computer, install Garmin Express

™

(www.garmin.com

/express). On your smartphone, install the Garmin Connect

Mobile app.

This provides easy access to these services for Garmin

devices:

• Software updates

• Data uploads to Garmin Connect

• Product registration

Setting Up Garmin Express

Connect the device to your computer using a USB cable.

Go to www.garmin.com/express.

Follow the on-screen instructions.

Diving

Dive Warnings

WARNING

• The diving features of this device are for use by certified

divers only. This device should not be used as a sole dive

computer. Failure to input the appropriate dive-related

information into the device can lead to serious personal injury

or death.

• Make sure that you fully understand the use, displays, and

limitations of your device. If you have questions about this

manual or the device, always resolve any discrepancies or

confusion before diving with the device. Always remember

that you are responsible for your own safety.

• There is always a risk of decompression sickness (DCS) for

any dive profile even if you follow the dive plan provided by

the dive tables or a diving device. No procedure, diving

device, or dive table will eliminate the possibility of DCS or

oxygen toxicity. An individual's physiological make up can

vary from day to day. This device cannot account for these

variations. You are strongly advised to remain well within the

limits provided by this device to minimize the risk of DCS.

You should consult a physician regarding your fitness before

diving.

• Always use backup instruments, including a depth gauge,

submersible pressure gauge, and timer or watch. You should

have access to decompression tables when diving with this

device.

• Perform pre-dive safety checks, such as checking proper

device function and settings, display function, battery level,

and tank pressure.

• This device should not be shared between multiple users for

diving purposes. Diver profiles are user specific, and using

another diver's profile can result in misleading information

that could lead to injury or death.

• For safety reasons, you should never dive alone. Dive with a

designated buddy. You should also stay with others for an

extended time after a dive, because the potential onset of

DCS may be delayed or triggered by surface activities.

• This device is not intended for commercial or professional

dive activities. It is for recreational purposes only.

Commercial or professional dive activities can expose the

user to extreme depths or conditions that increase the risk of

DCS.

• Do not dive with a gas if you have not personally verified its

contents and input the analyzed value to the device. Failure

to verify tank contents and input the appropriate gas values

to the device will result in incorrect dive planning information

and could result in serious injury or death.

• Diving with more than one gas mixture presents a much

greater risk than diving with a single gas mixture. Mistakes

related to the use of multiple gas mixtures may lead to

serious injury or death.

• Always ensure a safe ascent. A rapid ascent increases the

risk of DCS.

• Disabling the deco lockout feature on the device can result in

an increased risk of DCS, which can result in personal injury

or death. Disable this feature at your own risk.

• Violating a required decompression stop may result in

serious injury or death. Never ascend above the displayed

decompression stop depth.

• Always perform a safety stop between 3 and 5 meters (9.8

and 16.4 feet) for 3 minutes, even if no decompression stop

is required.

Dive Modes

The Descent Mk1 device supports six dive modes. Each dive

mode has four phases: dive pre-check, surface display, in-dive,

and post-dive.

Single-Gas: Allows you to dive with a single gas blend.

Multi-Gas: Allows you to configure multiple gas blends and

switch gases during your dive. This mode supports one

bottom gas, and up to five additional gases for

decompression or backup.

NOTE: Backup gases are not used in no-decompression limit

(NDL) and time to surface (TTS) decompression calculations

until you activate them during a dive.

CCR: Allows you to configure two PO2 setpoints, closed-circuit

(CC) gases, and open-circuit (OC) backup gases.

Gauge: Allows you to dive with basic bottom timer features.

NOTE: After diving in gauge mode, the device can only be

used in gauge or apnea mode for 24 hours.

Apnea: Allows you to free dive with apnea-specific dive data.

This mode has a higher data refresh rate.

Apnea Hunt: Similar to the Apnea dive mode, but tuned

specifically for spearfishers. Start and stop tones are

disabled.

Using the Pool Dive Mode

When the device is in pool dive mode, the tissue load and

decompression lockout features function normally, but dives are

not saved to the dive log.

Hold LIGHT to view the controls menu.

Select .

The pool dive mode turns off automatically at midnight.

Dive Setup

You can customize the dive settings based on your needs. Not

all settings are applicable for all dive modes. You can also edit

the settings before you start a dive.

Hold MENU, and select Dive Setup.

Gases: Sets the gas blends. You can enter the oxygen and

helium content for the gas, and the device calculates the

remaining percentage as the nitrogen content. You can have

up to twelve gases for each gas dive mode. The Mode option

allows you to set the intended use for the gas, such as

decompression or backup.

Conservatism: Sets the level of conservatism for

decompression calculations. Higher conservatism provides a

shorter bottom time and a longer ascent time. The Custom

option allows you to set a custom gradient factor.

NOTE: Make sure you understand gradient factors before

entering a custom level of conservatism.

Water Type: Allows you to select the water type.

2 Diving

PO2: Sets your decompression partial pressure of oxygen (PO2)

threshold, in bar. You can adjust the PO2 warning and critical

alert thresholds.

Alerts: Allows you to set alerts for depth and time. You can

enable different alerts for different dive modes.

Apnea Surf. Alert: Allows you to set alerts for apnea surface

intervals.

Safety Stop: Allows you to change the safety stop duration.

End Dive Delay: Allows you to set the length of time before the

device ends and saves a dive after surfacing.

CCR Setpoints: Allows you to set high and low PO2 setpoints

for closed-circuit rebreather (CCR) dives. If the Auto mode is

enabled, the device automatically switches to the high or low

setpoint based on your current depth. For example, if you

descend through the high setpoint depth or ascend through

the low setpoint depth, the PO2 threshold switches to the

high or low setpoint, respectively. Automatic setpoint depths

must be at least 6.1 m (20 ft.) apart.

NOTE: If you manually change setpoints within 1.8 m (6 ft.)

of an automatic switch depth, then automatic setpoint

switching is disabled until you are more than 1.8 m (6 ft.)

above or below the automatic switch depth. This prevents

unintended setpoint switching.

Backlight: Allows you to adjust the backlight settings for dive

activities.

Heart Rate: Allows you to enable or disable a heart rate monitor

for dives. The Stored Strap Data option allows you enable a

chest heart rate monitor, such as the HRM-Swim

™

HRM-Tri

™

device, that stores heart rate data with the dive.

You can view chest heart rate monitor data on your Garmin

Connect account after you complete the dive.

Double Tap to Scroll: Allows you to double tap the device to

scroll through the dive data screens.

Deco Lockout: Allows you to disable the decompression

lockout feature. This feature prevents single-gas and multi-

gas dives for 24 hours if you violate a decompression ceiling

for more than three minutes.

NOTE: You can still disable the decompression lockout

feature after violating a decompression ceiling.

Starting a Dive

From the watch face, select .

Select a dive mode (Dive Modes, page 2).

If necessary, select DOWN to edit the dive settings, such as

the gases, water type, and alerts (Dive Setup, page 2).

Wait with your wrist out of the water until the device acquires

GPS signals and GPS turns green.

The device requires GPS signals to save your dive entry

location.

Select .

Descend to start your dive.

The activity timer starts automatically when you reach a

depth of 1.2 m (4 ft.).

NOTE: If you start a dive without selecting a dive mode, the

device uses the most recently used dive mode and settings.

Select DOWN to scroll through the data screens and dive

compass.

TIP: You can also double tap the device to scroll through the

screens.

When you return to the surface, the device automatically ends

and saves the dive. You should keep your wrist out of the water

while the device saves your dive exit location.

Dive Data Screens

During a single-gas, multi-gas, or closed-circuit rebreather

(CCR) dive, you can view the current dive conditions, the dive

compass, and physiological data (Viewing the Primary Gas Dive

Data Screen, page 3, Navigating with the Dive Compass,

page 3, Viewing Additional Gas Dive Data, page 4).

During a gauge dive, you can view the current dive conditions,

the dive stopwatch, the dive compass, and heart rate data

(Using the Dive Stopwatch, page 4, Navigating with the Dive

Compass, page 3, Viewing Additional Gas Dive Data,

page 4).

During an apnea or apnea hunt dive, you can view the current

dive conditions, your surface time, details about your last dive,

heart rate data, and the map (Diving with the Map, page 4).

TIP: In the activity settings, you can reorder the default data

screens and add a dive stopwatch screen for gas dive activities

(Customizing the Data Screens, page 26). You cannot

customize the data fields for dive activities.

Viewing the Primary Gas Dive Data Screen

During a single-gas, multi-gas, or closed-circuit rebreather

(CCR) dive, scroll to the first data screen.

Your nitrogen (N2) tissue load level.

Green: 0 to 79% tissue load.

Yellow: 80 to 99% tissue load.

Red: 100% or greater tissue load.

Your rate of descent or ascent.

Green: Good. Ascent is less than 7.9 m (26 ft.) per min.

Yellow: Moderately high. Ascent is between 7.9 and 10.1 m

(26 and 33 ft.) per min.

Red: Too high. Ascent is greater than 10.1 m (33 ft.) per

min.

Your partial pressure of oxygen (PO2) level.

During a CCR dive, indicates whether closed-circuit (CC) or

open-circuit (OC) diving is active.

When you pass the no-decompression limit (NDL) time or

perform a safety stop, the data screen shows ascent

information.

The safety or decompression stop ceiling depth.

The safety or decompression stop time remaining.

Navigating with the Dive Compass

During a single-gas, multi-gas, closed-circuit rebreather, or

gauge dive, scroll to the dive compass.

Diving 3

The compass indicates your directional heading .

Select to set the heading.

The compass indicates deviations from the set heading .

Select , and select an option:

• To reset the heading, select Reset Heading.

• To change the heading by 180 degrees, select Set to

Recip..

NOTE: The compass indicates the reciprocal heading with

a red mark.

• To set to a 90-degree heading left or right, select Set to

90L or Set to 90R.

• To clear the heading, select Clear Heading.

Viewing Additional Gas Dive Data

During a single-gas, multi-gas, closed-circuit rebreather, or

gauge dive, scroll to the third data screen.

Your current heart rate zone (About Heart Rate Zones,

page 18).

NOTE: You can view only wrist heart rate monitor data during a

dive.

Gray: Zone 1.

Blue: Zone 2.

Green: Zone 3.

Orange: Zone 4.

Red: Zone 5.

Your central nervous system (CNS) oxygen toxicity level during

a single-gas, multi-gas, or closed-circuit rebreather dive.

Green: 0 to 79% CNS oxygen toxicity.

Yellow: 80 to 99% CNS oxygen toxicity.

Red: 100% or greater CNS oxygen toxicity.

Using the Dive Stopwatch

TIP: You can add a simplified stopwatch screen to any of the

gas dive modes (Customizing the Data Screens, page 26).

Start a Gauge dive.

Scroll to the stopwatch screen.

Select > Reset Avg. Depth to set the average depth to

your current depth.

Select > Start Stopwatch.

Select an option:

• To stop using the stopwatch, select > Stop Stopwatch.

• To restart the stopwatch, select > Reset Stopwatch.

Diving with the Map

You can view the map during apnea surface intervals.

During an apnea dive activity, scroll to the map.

Select , and select an option:

• To pan or zoom the map, select Pan/Zoom.

TIP: You can select to toggle between panning up and

down, panning left and right, or zooming. You can hold

to select the point indicated by the crosshairs.

• To mark your location, select Save Location.

TIP: You can select DOWN to change the icon.

Viewing the Surface Interval Widget

The widget displays your surface interval time, tissue load, and

central nervous system (CNS) oxygen toxicity percentage.

From the watch face, select UP.

Select to view tissue details and oxygen toxicity units

(OTU).

NOTE: The OTU accumulated during a dive expire after 24

hours.

Viewing the Dive Log Widget

The widget displays a brief summary of your last recorded dive.

From the surface interval widget, select UP.

Select to view more information about a dive.

Select a dive.

Select an option:

• To view additional information about the activity, select

Details.

• To view additional information about one of multiple apnea

dives in the activity, select Dives, and select a dive.

• To view the activity on a map, select Map.

NOTE: The device shows your entry and exit locations if

you waited for GPS signals before and after the dive.

• To view the depth profile of the activity, select Depth

Profile.

• To view the temperature profile of the activity, select

Temperature Profile.

Dive Planning

You can plan for future dives using your device. The device can

calculate no-decompression limit (NDL) times or create

decompression plans. When planning a dive, the device uses

your residual tissue load from recent dives in the calculations.

Calculating NDL Time

You can calculate the no-decompression limit (NDL) time or

maximum depth for a future dive. These calculations are not

saved or applied to your next dive.

Select > Plan Dive > Compute NDL.

Enter an oxygen percentage.

Select an option:

• To calculate the NDL time, select Enter Depth, and enter

the planned depth for your dive.

• To calculate the maximum depth, select Enter Time, and

enter your planned dive time.

The NDL countdown clock, depth, and maximum operating

depth (MOD) appear.

4 Diving

Select DOWN.

Select an option:

• To exit, select Done.

• To add intervals to your dive, select Add Repeat Dive,

and follow the on-screen instructions.

Creating a Decompression Plan

You can create open-circuit decompression plans and save

them for future dives.

Select > Plan Dive > Deco Plans > Add New.

Enter a name for the decompression plan.

Select an option:

• Select PO2 to enter the maximum partial pressure of

oxygen, in bar.

NOTE: The device uses the PO2 value for gas switching.

• Select Conservatism to enter your level of conservatism

for decompression calculations.

• Select Gases to enter your gas blends.

• Select Bottom Depth to enter the maximum dive depth.

• Select Bottom Time to enter the time at the bottom depth.

Select Save.

Viewing and Applying a Decompression Plan

You can replace the current single-gas or multi-gas dive settings

with the settings from a decompression plan.

Select > Plan Dive > Deco Plans.

Select a decompression plan.

If necessary, select View to view the decompression plan,

then select BACK.

Select Apply to use the decompression plan settings for the

single-gas or multi-gas dive mode.

Editing a Decompression Plan

Select > Plan Dive > Deco Plans.

Select a decompression plan.

Select an option:

• Select Edit to change the decompression plan details.

• Select Rename to edit the name of the decompression

plan.

Edit the information.

Deleting a Decompression Plan

Select > Plan Dive > Deco Plans.

Select a decompression plan.

Select Delete > .

No-Fly Time

After a dive, appears on the default watch face, along with a

no-fly time estimate in hours. You should not fly in an airplane

during this time. After a gauge dive or a dive that violated the

decompression plan, the no-fly time is set to 48 hours.

TIP: You can add the no-fly indicator to a custom watch face

(Customizing the Watch Face, page 30).

Tips for Wearing the Device with an

Exposure Suit

• Use the extra long silicone diving band to wear the device

over a thick exposure suit.

• Use the extension on the titanium watch band to increase

the length of the band.

• For accurate heart rate measurements, make sure the

exposure suit and other wrist-worn devices do not interfere

with the wrist-based heart rate monitor (Wearing the Device,

page 12).

Dive Alerts

Alert Message Cause Device Action

None Your partial

pressure of oxygen

(PO2) value is

above the specified

warning value.

Your PO2 value flashes

yellow.

PO2 is high.

Ascend or switch

to lower O2 gas.

Your PO2 value is

above the specified

critical value.

Your PO2 value flashes red.

The alert appears every 30

seconds until you ascend to a

safe level or switch gases.

PO2 is low.

Descend or switch

to higher O2 gas.

Your PO2 value is

below 0.18 bar.

If you are within the first two

minutes of your dive, your

PO2 value flashes yellow.

Otherwise, your PO2 value

flashes red.

The alert appears every 30

seconds until you descend to

a safe level or switch gases.

Approaching Deco

Stop

You are within one

stop interval (3 m

or 9.8 ft.) of the

decompression

stop depth.

None

Descend below

deco ceiling.

You are more than

0.6 m (2 ft.) above

the decompression

ceiling.

The current depth and stop

depth flash red.

If you remain above the

decompression ceiling for

more than three minutes, the

decompression lockout

feature goes into effect.

None You completed the

decompression

stop.

The decompression stop

depth and time flash blue for

five seconds.

Decompression

cleared

You completed all

decompression

stops.

None

Safety Stop

Cleared

You completed the

safety stop.

None

Ascending too fast.

Slow your ascent.

You are ascending

faster than 10.1 m/

min. (33 ft./min.) for

more than 5

seconds.

None

CNS toxicity at

80%.

Your central

nervous system

(CNS) oxygen

toxicity is at 80% of

the safe limit.

The alert appears during a

dive and on the dive pre-

check screen for your next

dive.

CNS toxicity at

%1%. End your

dive now.

Your CNS oxygen

toxicity is too high.

During a dive, "%1"

is replaced with

your current CNS

percentage.

The alert appears every two

minutes until you end the

dive.

Diving 5

Alert Message Cause Device Action

250 OTU

accumulated.

Your oxygen

toxicity units (OTU)

are at 80% of the

safe limit (250

units).

None

%1 OTU

accumulated. End

your dive now.

Your oxygen

toxicity units are

above the safe

limit. During a dive,

"%1" is replaced

with the number of

units accumulated.

The alert appears every two

minutes until you end the

dive.

NDL exceeded.

Decompression

now required.

You have

exceeded your no

decompression

limit (NDL) time.

None

Approaching NDL You are at 80% of

your tissue load.

None

Battery is low. Less than 20%

battery power

remains.

The alert appears when the

device is below 20% battery

power and on the dive pre-

check screen.

Battery critically

low. End your dive

now.

Less than 10%

battery power

remains.

The alert appears when the

device is below 10% battery

power and on the dive pre-

check screen.

Activities and Apps

Your device can be used for indoor, outdoor, athletic, and fitness

activities. When you start an activity, the device displays and

records sensor data. You can save activities and share them

with the Garmin Connect community.

You can also add Connect IQ

™

activities and apps to your

device using the Connect IQ website (Connect IQ Features,

page 12).

For more information about activity tracking and fitness metric

accuracy, go to garmin.com/ataccuracy.

Starting an Activity

When you start an activity, GPS turns on automatically (if

required). When you stop the activity, the device returns to

watch mode.

From the watch face, select .

Select an activity.

If necessary, follow the on-screen instructions to enter

additional information.

If necessary, wait while the device connects to your ANT+

sensors.

If the activity requires GPS, go outside, and wait while the

device locates satellites.

Select to start the timer.

NOTE: The device does not record your activity data until

you start the timer.

Tips for Recording Activities

• Charge the device before starting an activity (Charging the

Device, page 1).

• Select BACK to record laps.

• Select UP or DOWN to view additional data pages.

Stopping an Activity

Select .

Select an option:

• To resume your activity, select Resume.

• To save the activity and return to watch mode, select

Save.

• To suspend your activity and resume it at a later time,

select Resume Later.

• To mark a lap, select Lap.

• To navigate back to the starting point of your activity along

the path you traveled, select Back to Start > TracBack.

NOTE: This feature is available only for activities that use

GPS.

• To navigate back to the starting point of your activity by

the most direct path, select Back to Start > Route.

NOTE: This feature is available only for activities that use

GPS.

• To discard the activity and return to watch mode, select

Discard > Yes.

NOTE: After stopping the activity, the device saves it

automatically after 30 minutes.

Adding or Removing a Favorite Activity

The list of your favorite activities appears when you press

from the watch face, and it provides quick access to the

activities you use most. The first time you press to start an

activity, the device prompts you to select your favorite activities.

You can add or remove favorite activities at any time.

Hold MENU.

Select Settings > Activities & Apps.

Your favorite activities appear at the top of the list with a

white background. Other activities appear with a black

background.

Select an option:

• To add a favorite activity, select the activity, and select

Set as Favorite.

• To remove a favorite activity, select the activity, and select

Remove from Favorites.

Creating a Custom Activity

From the watch face, select > Add.

Select an option:

• Select Copy Activity to create your custom activity

starting from one of your saved activities.

• Select Other to create a new custom activity.

If necessary, select an activity type.

Select a name or enter a custom name.

Duplicate activity names include a number, for example:

Bike(2).

Select an option:

• Select an option to customize specific activity settings. For

example, you can select an accent color or customize the

data screens.

• Select Done to save and use the custom activity.

Select Yes to add the activity to your list of favorites.

Indoor Activities

The Descent device can be used for training indoors, such as

running on an indoor track or using a stationary bike. GPS is

turned off for indoor activities.

When running or walking with GPS turned off, speed, distance,

and cadence are calculated using the accelerometer in the

device. The accelerometer is self-calibrating. The accuracy of

the speed, distance, and cadence data improves after a few

outdoor runs or walks using GPS.

6 Activities and Apps

Select During Activity.

Select a notification preference.

Select a sound preference.

Select Not During Activity.

Select a notification preference.

Select a sound preference.

Select Timeout.

Select the amount of time the alert for a new notification

appears on the screen.

Viewing Notifications

From the watch face, select UP to view the notifications

widget.

Select , and select a notification.

Select DOWN for more options.

Select BACK to return to the previous screen.

Receiving an Incoming Phone Call

When you receive a phone call on your connected smartphone,

the Descent device displays the name or phone number of the

caller. You can accept or decline the call. If your device is

connected to a smartphone with Android

™

, you can also decline

with a text message by selecting from a list of messages on your

Descent device.

• To accept the call, select Accept.

• To decline the call, select Decline.

• To decline the call and immediately send a text message

reply, select Reply, and select a message from the list.

Replying to a Text Message

NOTE: This feature is available only for smartphones with

Android.

When you receive a text message notification on your Descent

device, you can send a quick reply by selecting from a list of

messages. You can customize messages in the Garmin

Connect Mobile app.

NOTE: This feature sends text messages using your phone.

Regular text message limits and charges from your carrier and

phone plan may apply. Contact your mobile carrier for more

information about text message charges or limits.

From the watch face, select UP to view the notifications

widget.

Select , and select a text message notification.

Select DOWN > Reply.

Select a message from the list.

Your phone sends the selected message as an SMS text

message.

Managing Notifications

You can use your compatible smartphone to manage

notifications that appear on your Descent Mk1 device.

Select an option:

• If you are using an Apple

smartphone, use the

notifications settings on your smartphone to select the

items to show on the device.

• If you are using a smartphone with Android, from the

Garmin Connect Mobile app, select Settings > Smart

Notifications.

Turning Off the Bluetooth Smartphone

Connection

Hold LIGHT to view the controls menu.

Select to turn off the Bluetooth smartphone connection on

your Descent device.

Refer to the owner's manual for your mobile device to turn off

Bluetooth wireless technology on your mobile device.

Turning On and Off Smartphone Connection

Alerts

You can set the Descent Mk1 device to alert you when your

paired smartphone connects and disconnects using Bluetooth

wireless technology.

NOTE: Smartphone connection alerts are turned off by default.

Hold MENU.

Select Settings > Phone > Alerts.

Locating a Lost Mobile Device

You can use this feature to help locate a lost mobile device that

is paired using Bluetooth wireless technology and currently

within range.

Hold LIGHT to view the controls menu.

Select .

The Descent device begins searching for your paired mobile

device. An audible alert sounds on your mobile device, and

the Bluetooth signal strength displays on the Descent device

screen. The Bluetooth signal strength increases as you move

closer to your mobile device.

Select BACK to stop searching.

Garmin Connect

Your Garmin Connect account allows you to track your

performance and connect with your friends. It gives you the tools

to track, analyze, share, and encourage each other. You can

record the events of your active lifestyle, including runs, walks,

rides, swims, hikes, golf games, and more.

You can create your free Garmin Connect account when you

pair your device with your phone using the Garmin Connect

Mobile app. You can also create an account when you set up

the Garmin Express application (www.garmin.com/express).

Store your activities: After you complete and save a timed

activity with your device, you can upload that activity to your

Garmin Connect account and keep it as long as you want.

Analyze your data: You can view more detailed information

about your fitness and outdoor activities, including time,

distance, heart rate, calories burned, cadence, an overhead

map view, and pace and speed charts. You can view more

detailed information about your golf games, including

scorecards, statistics, and course information. You can also

view customizable reports.

NOTE: To view some data, you must pair an optional

wireless sensor with your device (Pairing Your Wireless

Sensors, page 32).

Track your progress: You can track your daily steps, join a

friendly competition with your connections, and meet your

goals.

10 Connected Features

Share your activities: You can connect with friends to follow

each other's activities or post links to your activities on your

favorite social networking sites.

Manage your settings: You can customize your device and

user settings on your Garmin Connect account.

Updating the Software Using Garmin Connect Mobile

Before you can update your device software using the Garmin

Connect Mobile app, you must have a Garmin Connect account,

and you must pair the device with a compatible smartphone

(Pairing Your Smartphone with Your Device, page 1).

Synchronize your device with the Garmin Connect Mobile

app (Manually Syncing Data with Garmin Connect Mobile,

page 11).

When new software is available, the Garmin Connect Mobile

app automatically sends the update to your device.

Updating the Software Using Garmin Express

Before you can update your device software, you must

download and install the Garmin Express application and add

your device (Using Garmin Connect on Your Computer,

page 11).

Connect the device to your computer using the USB cable.

When new software is available, the Garmin Express

application sends it to your device.

After the Garmin Express application finishes sending the

update, disconnect the device from your computer.

Your device installs the update.

Using Garmin Connect on Your Computer

The Garmin Express application connects your device to your

Garmin Connect account using a computer. You can use the

Garmin Express application to upload your activity data to your

Garmin Connect account and to send data, such as workouts or

training plans, from Garmin Connect website to your device. You

can also install device software updates and manage your

Connect IQ apps.

Connect the device to your computer using the USB cable.

Go to www.garmin.com/express.

Download and install the Garmin Express application.

Open the Garmin Express application, and select Add

Device.

Follow the on-screen instructions.

Manually Syncing Data with Garmin Connect Mobile

Hold LIGHT to view the controls menu.

Select .

Garmin Golf

™

App

The Garmin Golf app allows golfers to compete with each other

at different courses. More than 41,000 courses have a weekly

leaderboard that anyone can join. You can set up a tournament

event and invite players to compete. You can upload scorecards

from your compatible Garmin device to view detailed statistics

and shot analyses.

The Garmin Golf app syncs your data with your Garmin Connect

account. You can download the Garmin Golf app from the app

store on your smartphone.

Starting a GroupTrack Session

Before you can start a GroupTrack session, you must have a

Garmin Connect account, a compatible smartphone, and the

Garmin Connect Mobile app.

These instructions are for starting a GroupTrack session with

Descent Mk1 devices. If your connections have other compatible

devices, you can see them on the map. The other devices may

not be able to display GroupTrack riders on the map.

Go outside, and turn on the Descent Mk1 device.

Pair your smartphone with the Descent Mk1 device (Pairing

Your Smartphone with Your Device, page 1).

On the Descent Mk1 device, hold MENU, and select

Settings > GroupTrack > Show on Map to enable viewing

connections on the map screen.

In the Garmin Connect Mobile app, from the settings menu,

select LiveTrack > GroupTrack.

If you have more than one compatible device, select a device

for the GroupTrack session.

Select Visible to > All Connections.

Select Start LiveTrack.

On the Descent Mk1 device, start an activity.

Scroll to the map to view your connections.

TIP: From the map, you can hold MENU and select Nearby

Connections to view distance, direction, and pace or speed

information for other connections in the GroupTrack session.

Tips for GroupTrack Sessions

The GroupTrack feature allows you to keep track of other

connections in your group using LiveTrack directly on the

screen. All members of the group must be your connections in

your Garmin Connect account.

• Start your activity outside using GPS.

• Pair your Descent Mk1 device with your smartphone using

Bluetooth technology.

• In the Garmin Connect Mobile app, from the settings menu,

select Connections to update the list of connections for your

GroupTrack session.

• Make sure all of your connections pair to their smartphones

and start a LiveTrack session in the Garmin Connect Mobile

app.

• Make sure all your connections are in range (40 km or

25 mi.).

• During a GroupTrack session, scroll to the map to view your

connections (Adding a Map to an Activity, page 26).

Wi‑Fi

Connected Features

Some Descent Mk1 models have Wi‑Fi connected features. The

Garmin Connect Mobile app is not required for you to use Wi‑Fi

connectivity.

Activity uploads to your Garmin Connect account:

Automatically sends your activity to your Garmin Connect

account as soon as you finish recording the activity.

Workouts and training plans: Allows you to browse for and

select workouts and training plans on the Garmin Connect

site. The next time your device has a Wi‑Fi connection, the

files are wirelessly sent to your device.

Software updates: Allows your device to download the latest

software update when a Wi‑Fi connection is available. The

next time you turn on or unlock the device, you can follow the

on-screen instructions to install the software update.

Connecting to a Wi‑Fi Network

You must connect your device to the Garmin Connect Mobile

app on your smartphone or to the Garmin Express application

on your computer before you can connect to a Wi‑Fi network.

Hold MENU.

Select Settings > Wi-Fi > My Networks > Add Network.

The device displays a list of nearby Wi‑Fi networks.

Select a network.

If necessary, enter the password for the network.

Wi‑Fi

Connected Features 11

The device connects to the network, and the network is added to

the list of saved networks. The device reconnects to this network

automatically when it is within range.

Connect IQ Features

You can add Connect IQ features to your watch from Garmin

and other providers using the Connect IQ website. You can

customize your device with watch faces, data fields, widgets,

and apps.

NOTE: For your safety, Connect IQ features are not available

while diving. This ensures that all dive capabilities function as

designed.

Watch Faces: Allow you to customize the appearance of the

clock.

Data Fields: Allow you to download new data fields that present

sensor, activity, and history data in new ways. You can add

Connect IQ data fields to built-in features and pages.

Widgets: Provide information at a glance, including sensor data

and notifications.

Apps: Add interactive features to your watch, such as new

outdoor and fitness activity types.

Downloading Connect IQ Features Using

Your Computer

Connect the device to your computer using a USB cable.

Go to apps.garmin.com, and sign in.

Select a Connect IQ feature, and download it.

Follow the on-screen instructions.

Heart Rate Features

The Descent Mk1 device has a wrist-based heart rate monitor

and is also compatible with chest heart rate monitors (sold

separately). You can view heart rate data on the heart rate

widget. If both wrist-based heart rate and chest heart rate data

are available, your device uses the chest heart rate data.

Wrist-based Heart Rate

Wearing the Device

• Wear the device above your wrist bone.

NOTE: The device should be snug but comfortable. For more

accurate heart rate readings on the Descent Mk1 device, it

should not move while running or exercising.

NOTE: While diving, the device should stay in contact with

your skin, and it should not bump into other wrist-worn

devices.

NOTE: The optical sensor is located on the back of the

device.

• See Tips for Erratic Heart Rate Data, page 12 for more

information about wrist-based heart rate.

• For more information about accuracy, go to garmin.com

/ataccuracy.

Tips for Erratic Heart Rate Data

If the heart rate data is erratic or does not appear, you can try

these tips.

• Clean and dry your arm before putting on the device.

• Avoid wearing sunscreen, lotion, and insect repellent under

the device.

• Avoid scratching the heart rate sensor on the back of the

device.

• Wear the device above your wrist bone. The device should

be snug but comfortable.

• Wait until the icon is solid before starting your activity.

• Warm up for 5 to 10 minutes and get a heart rate reading

before starting your activity.

NOTE: In cold environments, warm up indoors.

• Rinse the device with fresh water after each workout.

Viewing the Heart Rate Widget

The widget displays your current heart rate in beats per minute

(bpm) and a graph of your heart rate for the last 4 hours.

From the watch face, select DOWN.

Select to view your average resting heart rate values for

the last 7 days.

Broadcasting Heart Rate Data to Garmin Devices

You can broadcast your heart rate data from your Descent Mk1

device and view it on paired Garmin devices.

NOTE: Broadcasting heart rate data decreases battery life.

From the heart rate widget, hold MENU.

Select Options > Broadcast Heart Rate.

The Descent Mk1 device starts broadcasting your heart rate

data, and appears.

NOTE: You can view only the heart rate widget while

broadcasting heart rate data from the heart rate widget.

Pair your Descent Mk1 device with your Garmin ANT+

compatible device.

NOTE: The pairing instructions differ for each Garmin

compatible device. See your owner's manual.

TIP: To stop broadcasting your heart rate data, select any

key, and select Yes.

Broadcasting Heart Rate Data During an Activity

You can set up your Descent Mk1 device to broadcast your

heart rate data automatically when you begin an activity. For

example, you can broadcast your heart rate data to an Edge

device while cycling, or to a VIRB

action camera during an

activity.

NOTE: Broadcasting heart rate data decreases battery life.

NOTE: Broadcasting heart rate data is not available for dive

activities.

From the heart rate widget, hold MENU.

Select Options > Broadcast During Activity.

Begin an activity (Starting an Activity, page 6).

The Descent Mk1 device starts broadcasting your heart rate

data in the background.

NOTE: There is no indication that the device is broadcasting

your heart rate data during an activity.

If necessary, pair your Descent Mk1 device with your Garmin

ANT+ compatible device.

12 Connect IQ Features

NOTE: The pairing instructions differ for each Garmin

compatible device. See your owner's manual.

TIP: To stop broadcasting your heart rate data, stop the

activity (Stopping an Activity, page 6).

Setting an Abnormal Heart Rate Alert

You can set the device to alert you when your heart rate

exceeds a certain number of beats per minute (bpm) after a

period of inactivity.

From the heart rate widget, hold MENU.

Select Options > Abnormal HR Alert > Status > On.

Select Alert Threshold.

Select a heart rate threshold value.

Each time you exceed the threshold value, a message appears

and the device vibrates.

Turning Off the Wrist-based Heart Rate Monitor

The default value for the Wrist Heart Rate setting is Auto. The

device automatically uses the wrist-based heart rate monitor

unless you pair an ANT+ heart rate monitor to the device.

From the heart rate widget, hold MENU.

Select Options > Status > Off.

Putting On the Heart Rate Monitor

You should wear the heart rate monitor directly on your skin, just

below your sternum. It should be snug enough to stay in place

during your activity.

If necessary, attach the strap extender to the heart rate

monitor.

Wet the electrodes on the back of the heart rate monitor to

create a strong connection between your chest and the

transmitter.

Wear the heart rate monitor with the Garmin logo facing right-

side up.

The loop and hook connection should be on your right

side.

Wrap the heart rate monitor around your chest, and connect

the strap hook to the loop.

NOTE: Make sure the care tag does not fold over.

After you put on the heart rate monitor, it is active and sending

data.

Tips for Erratic Heart Rate Data

If the heart rate data is erratic or does not appear, you can try

these tips.

• Reapply water to the electrodes and contact patches (if

applicable).

• Tighten the strap on your chest.

• Warm up for 5 to 10 minutes.

• Follow the care instructions (Caring for the Heart Rate

Monitor, page 13).

• Wear a cotton shirt or thoroughly wet both sides of the strap.

Synthetic fabrics that rub or flap against the heart rate

monitor can create static electricity that interferes with heart

rate signals.

• Move away from sources that can interfere with your heart

rate monitor.

Sources of interference may include strong electromagnetic

fields, some 2.4 GHz wireless sensors, high-voltage power

lines, electric motors, ovens, microwave ovens, 2.4 GHz

cordless phones, and wireless LAN access points.

Caring for the Heart Rate Monitor

NOTICE

A buildup of sweat and salt on the strap can decrease the ability

of the heart rate monitor to report accurate data.

• Rinse the heart rate monitor after every use.

• Hand wash the heart rate monitor after every seven uses or

one pool swim, using a tiny amount of mild detergent, such

as dishwashing liquid.

NOTE: Using too much detergent may damage the heart rate

monitor.

• Do not put the heart rate monitor in a washing machine or

dryer.

• When drying the heart rate monitor, hang it up or lay it flat.

Running Dynamics

You can use your compatible Descent device paired with the

HRM-Run

™

accessory or other running dynamics accessory to

provide real-time feedback about your running form. If your

Descent device was packaged with the HRM-Run accessory,

the devices are already paired.

The running dynamics accessory has an accelerometer that

measures torso movement in order to calculate six running

metrics.

Cadence: Cadence is the number of steps per minute. It

displays the total steps (right and left combined).

Vertical oscillation: Vertical oscillation is your bounce while

running. It displays the vertical motion of your torso,

measured in centimeters.

Ground contact time: Ground contact time is the amount of

time in each step that you spend on the ground while

running. It is measured in milliseconds.

NOTE: Ground contact time and balance are not available

while walking.

Ground contact time balance: Ground contact time balance

displays the left/right balance of your ground contact time

while running. It displays a percentage. For example, 53.2

with an arrow pointing left or right.

Stride length: Stride length is the length of your stride from one

footfall to the next. It is measured in meters.

Vertical ratio: Vertical ratio is the ratio of vertical oscillation to

stride length. It displays a percentage. A lower number

typically indicates better running form.

Training with Running Dynamics

Before you can view running dynamics, you must put on a

running dynamics accessory, such as the HRM-Run accessory,

and pair it with your device (Pairing Your Wireless Sensors,

page 32). If your Descent Mk1 was packaged with the

accessory, the devices are already paired, and the Descent Mk1

is set to display running dynamics data screens.

Heart Rate Features 13

Select an option:

• If your running dynamics accessory and Descent Mk1

device are already paired, skip to step 7.

• If your running dynamics accessory and Descent Mk1

device are not already paired, complete all the steps in

this procedure.

Hold MENU.

Select Settings > Activities & Apps.

Select an activity.

Select the activity settings.

Select Data Screens > Add New.

Select a running dynamics data screen.

NOTE: The running dynamics screens are not available for

all activities.

Go for a run (Starting an Activity, page 6).

Select UP or DOWN to open a running dynamics screen to

view your metrics.

Color Gauges and Running Dynamics Data

The running dynamics screens display a color gauge for the primary metric. You can display cadence, vertical oscillation, ground

contact time, ground contact time balance, or vertical ratio as the primary metric. The color gauge shows you how your running

dynamics data compare to those of other runners. The color zones are based on percentiles.

Garmin has researched many runners of all different levels. The data values in the red or orange zones are typical for less

experienced or slower runners. The data values in the green, blue, or purple zones are typical for more experienced or faster

runners. More experienced runners tend to exhibit shorter ground contact times, lower vertical oscillation, lower vertical ratio, and

higher cadence than less experienced runners. However, taller runners typically have slightly slower cadences, longer strides, and

slightly higher vertical oscillation. Vertical ratio is your vertical oscillation divided by stride length. It is not correlated with height.

Go to www.garmin.com/runningdynamics for more information on running dynamics. For additional theories and interpretations of

running dynamics data, you can search reputable running publications and websites.

Color Zone Percentile in Zone Cadence Range Ground Contact Time Range

Purple >95 >183 spm <218 ms

Blue 70–95 174–183 spm 218–248 ms

Green 30–69 164–173 spm 249–277 ms

Orange 5–29 153–163 spm 278–308 ms

Red <5 <153 spm >308 ms

Ground Contact Time Balance Data

Ground contact time balance measures your running symmetry and appears as a percentage of your total ground contact time. For

example, 51.3% with an arrow pointing left indicates the runner is spending more time on the ground when on the left foot. If your

data screen displays both numbers, for example 48–52, 48% is the left foot and 52% is the right foot.

Color Zone Red Orange Green Orange Red

Symmetry Poor Fair Good Fair Poor

Percent of Other Runners 5% 25% 40% 25% 5%

Ground Contact Time Balance >52.2% L 50.8–52.2% L 50.7% L–50.7% R 50.8–52.2% R >52.2% R

While developing and testing running dynamics, the Garmin team found correlations between injuries and greater imbalances with

certain runners. For many runners, ground contact time balance tends to deviate further from 50–50 when running up or down hills.

Most running coaches agree that a symmetrical running form is good. Elite runners tend to have quick and balanced strides.

You can watch the color gauge or data field during your run or view the summary on your Garmin Connect account after your run.

As with the other running dynamics data, ground contact time balance is a quantitative measurement to help you learn about your

running form.

Vertical Oscillation and Vertical Ratio Data

The data ranges for vertical oscillation and vertical ratio are slightly different depending on the sensor and whether it is positioned at

the chest (HRM-Tri or HRM-Run accessories) or at the waist (Running Dynamics Pod accessory).

Color Zone Percentile in Zone Vertical Oscillation Range at

Chest

Vertical Oscillation Range at

Waist

Vertical Ratio at Chest Vertical Ratio at Waist

Purple >95 <6.4 cm <6.8 cm <6.1% <6.5%

Blue 70–95 6.4–8.1 cm 6.8–8.9 cm 6.1–7.4% 6.5–8.3%

Green 30–69 8.2–9.7 cm 9.0–10.9 cm 7.5–8.6% 8.4–10.0%

Orange 5–29 9.8–11.5 cm 11.0–13.0 cm 8.7–10.1% 10.1–11.9%

Red <5 >11.5 cm >13.0 cm >10.1% >11.9%

Tips for Missing Running Dynamics Data

If running dynamics data does not appear, you can try these

tips.

• Make sure you have a running dynamics accessory, such as

the HRM-Run accessory.

Accessories with running dynamics have on the front of the

module.

• Pair the running dynamics accessory with your Descent

device again, according to the instructions.

• If the running dynamics data display shows only zeros, make

sure the accessory is worn right-side up.

NOTE: Ground contact time and balance appears only while

running. It is not calculated while walking.

Performance Measurements

These performance measurements are estimates that can help

you track and understand your training activities and race

performances. The measurements require a few activities using

14 Heart Rate Features

wrist-based heart rate or a compatible chest heart rate monitor.

Cycling performance measurements require a heart rate monitor

and a power meter.

These estimates are provided and supported by Firstbeat. For

more information, go to www.garmin.com/physio.

NOTE: The estimates may seem inaccurate at first. The device

requires you to complete a few activities to learn about your

performance.

Training status: Training status shows you how your training

affects your fitness and performance. Your training status is

based on changes to your training load and VO2 max. over

an extended time period.

VO2 max.: VO2 max. is the maximum volume of oxygen (in

milliliters) you can consume per minute per kilogram of body

weight at your maximum performance.

Recovery time: The recovery time displays how much time

remains before you are fully recovered and ready for the next

hard workout.

Training load: Training load is the sum of your excess post-

exercise oxygen consumption (EPOC) over the last 7 days.

EPOC is an estimate of how much energy it takes for your

body to recover after exercise.

Predicted race times: Your device uses the VO2 max. estimate

and published data sources to provide a target race time

based on your current state of fitness. This projection also

presumes you have completed the proper training for the

race.

HRV stress test: The HRV (heart rate variability) stress test

requires a Garmin chest heart rate monitor. The device

records your heart rate variability while standing still for 3

minutes. It provides your overall stress level. The scale is 1 to

100, and a lower score indicates a lower stress level.

Performance condition: Your performance condition is a real-

time assessment after 6 to 20 minutes of activity. It can be

added as a data field so you can view your performance

condition during the rest of your activity. It compares your

real-time condition to your average fitness level.

Functional threshold power (FTP): The device uses your user

profile information from the initial setup to estimate your FTP.

For a more accurate rating, you can conduct a guided test.

Lactate threshold: Lactate threshold requires a chest heart rate

monitor. Lactate threshold is the point where your muscles

start to rapidly fatigue. Your device measures your lactate

threshold level using heart rate data and pace.

Turning Off Performance Notifications

Performance notifications are turned on by default. Some

performance notifications are alerts that appear upon completion

of your activity. Some performance notifications appear during

an activity or when you achieve a new performance

measurement, such as a new VO2 max. estimate.

Hold MENU.

Select Settings > Physiological Metrics > Performance

Notifications.

Select an option.

Detecting Performance Measurements Automatically

The Auto Detection feature is turned on by default. The device

can automatically detect your maximum heart rate, and lactate

threshold during an activity. When paired with a compatible

power meter, the device can automatically detect your functional

threshold power (FTP) during an activity.

NOTE: The device detects a maximum heart rate only when

your heart rate is higher than the value set in your user profile.

Hold MENU.

Select Settings > Physiological Metrics > Auto Detection.

Select an option.

Syncing Activities and Performance Measurements

You can sync activities and performance measurements from

other Garmin devices to your Descent Mk1 device using your

Garmin Connect account. This allows your device to more

accurately reflect your training status and fitness. For example,

you can record a ride with an Edge device, and view your

activity details and overall training load on your Descent Mk1

device.

Hold MENU.

Select Settings > Physiological Metrics > TrueUp.

When you sync your device with your smartphone, recent

activities and performance measurements from your other

Garmin devices appear on your Descent Mk1 device.

Training Status

Training status shows you how your training affects your fitness

level and performance. Your training status is based on changes

to your training load and VO2 max. over an extended time

period. You can use your training status to help plan future

training and continue improving your fitness level.

Peaking: Peaking means that you are in ideal race condition.

Your recently reduced training load is allowing your body to

recover and fully compensate for earlier training. You should

plan ahead, since this peak state can only be maintained for

a short time.

Productive: Your current training load is moving your fitness

level and performance in the right direction. You should plan

recovery periods into your training to maintain your fitness

level.

Maintaining: Your current training load is enough to maintain

your fitness level. To see improvement, try adding more

variety to your workouts or increasing your training volume.

Recovery: Your lighter training load is allowing your body to

recover, which is essential during extended periods of hard

training. You can return to a higher training load when you

feel ready.

Unproductive: Your training load is at a good level, but your

fitness is decreasing. Your body may be struggling to

recover, so you should pay attention to your overall health

including stress, nutrition, and rest.

Detraining: Detraining occurs when you are training much less

than usual for a week or more, and it is affecting your fitness

level. You can try increasing your training load to see

improvement.

Overreaching: Your training load is very high and

counterproductive. Your body needs a rest. You should give

yourself time to recover by adding lighter training to your

schedule.

No Status: The device needs one or two weeks of training

history, including activities with VO2 max. results from

running or cycling, to determine your training status.

Tips for Getting Your Training Status

The training status feature depends on updated assessments of

your fitness level, including at least two VO2 max.

measurements per week. Your VO2 max. estimate is updated

Heart Rate Features 15

after outdoor runs or rides during which your heart rate reached

at least 70% of your maximum heart rate for several minutes.

The trail run and indoor run activities do not generate a VO2

max. estimate in order to preserve the accuracy of your fitness

level trend.

To get the most out of the training status feature, you can try

these tips.

• At least two times per week, run or ride outdoors with a

power meter, and reach a heart rate higher than 70% of your

maximum heart rate for at least 10 minutes.

After using the device for one week, your training status

should be available.

• Record all of your fitness activities on this device, or enable

the Physio TrueUp

™

feature, allowing your device to learn

about your performance (Syncing Activities and Performance

Measurements, page 15).

About VO2 Max. Estimates

VO2 max. is the maximum volume of oxygen (in milliliters) you

can consume per minute per kilogram of body weight at your

maximum performance. In simple terms, VO2 max. is an

indication of athletic performance and should increase as your

level of fitness improves. The Descent Mk1 device requires

wrist-based heart rate or a compatible chest heart rate monitor

to display your VO2 max. estimate. The device has separate

VO2 max. estimates for running and cycling. You must run

either outside with GPS or ride with a compatible power meter at

a moderate level of intensity for several minutes to get an

accurate VO2 max. estimate.

On the device, your VO2 max. estimate appears as a number,

description, and position on the color gauge. On your Garmin

Connect account, you can view additional details about your

VO2 max. estimate, including your fitness age. Your fitness age

gives you an idea of how your fitness compares with a person of

the same gender and different age. As you exercise, your fitness

age can decrease over time.

Purple Superior

Blue Excellent

Green Good

Orange Fair

Red Poor

VO2 max. data is provided by FirstBeat. VO2 max. analysis is

provided with permission from The Cooper Institute

. For more

information, see the appendix (VO2 Max. Standard Ratings,

page 39), and go to www.CooperInstitute.org.

Getting Your VO2 Max. Estimate for Running

This feature requires wrist-based heart rate or a compatible

chest heart rate monitor. If you are using a chest heart rate

monitor, you must put it on and pair it with your device (Pairing

Your Wireless Sensors, page 32). If your Descent Mk1 device

was packaged with a heart rate monitor, the devices are already

paired.

For the most accurate estimate, complete the user profile setup

(Setting Up Your User Profile, page 18), and set your

maximum heart rate (Setting Your Heart Rate Zones, page 18).

The estimate may seem inaccurate at first. The device requires

a few runs to learn about your running performance.

Run for at least 10 minutes outdoors.

After your run, select Save.

Select UP or DOWN to view the performance widget.

Select to scroll through the performance measurements.

Getting Your VO2 Max. Estimate for Cycling

This feature requires a power meter and wrist-based heart rate

or a compatible chest heart rate monitor. The power meter must

be paired with your Descent Mk1 device (Pairing Your Wireless

Sensors, page 32). If you are using a chest heart rate monitor,

you must put it on and pair it with your device. If your Descent

Mk1 device was packaged with a heart rate monitor, the devices

are already paired.

For the most accurate estimate, complete the user profile setup

(Setting Up Your User Profile, page 18) and set your maximum

heart rate (Setting Your Heart Rate Zones, page 18). The

estimate may seem inaccurate at first. The device requires a few

rides to learn about your cycling performance.

Ride at a steady, high intensity for at least 20 minutes.

After your ride, select Save.

Select UP or DOWN to view the performance widget.

Select to scroll through the performance measurements.

Recovery Time

You can use your Garmin device with wrist-based heart rate or a

compatible chest heart rate monitor to display how much time

remains before you are fully recovered and ready for the next

hard workout.

NOTE: The recovery time recommendation uses your VO2 max.

estimate and may seem inaccurate at first. The device requires

you to complete a few activities to learn about your

performance.

The recovery time appears immediately following an activity.

The time counts down until it is optimal for you to attempt

another hard workout.

Viewing Your Recovery Time

For the most accurate estimate, complete the user profile setup

(Setting Up Your User Profile, page 18), and set your

maximum heart rate (Setting Your Heart Rate Zones, page 18).

Go for a run.

After your run, select Save.

The recovery time appears. The maximum time is 4 days.

NOTE: From the watch face, you can select UP or DOWN to

view the performance widget, and select to scroll through

the performance measurements to view your recovery time.

Recovery Heart Rate

If you are training with wrist-based heart rate or a compatible

chest heart rate monitor, you can check your recovery heart rate

value after each activity. Recovery heart rate is the difference

between your exercising heart rate and your heart rate two

minutes after the exercise has stopped. For example, after a

typical training run, you stop the timer. Your heart rate is

140 bpm. After two minutes of no activity or cool down, your

heart rate is 90 bpm. Your recovery heart rate is 50 bpm (140

minus 90). Some studies have linked recovery heart rate to

cardiac health. Higher numbers generally indicate healthier

hearts.

TIP: For best results, you should stop moving for two minutes

while the device calculates your recovery heart rate value. You

can save or discard the activity after this value appears.

Training Load

Training load is a measurement of your training volume over the

last seven days. It is the sum of your excess post-exercise

oxygen consumption (EPOC) measurements for the last seven

days. The gauge indicates whether your current load is low,

16 Heart Rate Features

high, or within the optimal range to maintain or improve your

fitness level. The optimal range is determined based on your

individual fitness level and training history. The range adjusts as

your training time and intensity increase or decrease.

Viewing Your Predicted Race Times

For the most accurate estimate, complete the user profile setup

(Setting Up Your User Profile, page 18), and set your

maximum heart rate (Setting Your Heart Rate Zones, page 18).

Your device uses the VO2 max. estimate (About VO2 Max.

Estimates, page 16) and published data sources to provide a

target race time based on your current state of fitness. This

projection also presumes you have completed the proper

training for the race.

NOTE: The projections may seem inaccurate at first. The device

requires a few runs to learn about your running performance.

Select UP or DOWN to view the performance widget.

Select to scroll through the performance measurements.

Your projected race times appear for 5K, 10K, half marathon,

and marathon distances.

About Training Effect

Training Effect measures the impact of an activity on your

aerobic and anaerobic fitness. Training Effect accumulates

during the activity. As the activity progresses, the Training Effect

value increases, telling you how the activity has improved your

fitness. Training Effect is determined by your user profile

information, heart rate, duration, and intensity of your activity.

Aerobic Training Effect uses your heart rate to measure how the

accumulated intensity of an exercise affects your aerobic fitness

and indicates if the workout had a maintaining or improving

effect on your fitness level. Your EPOC accumulated during

exercise is mapped to a range of values that account for your

fitness level and training habits. Steady workouts at moderate

effort or workouts involving longer intervals (>180 sec) have a

positive impact on your aerobic metabolism and result in an

improved aerobic Training Effect.

Anaerobic Training Effect uses heart rate and speed (or power)

to determine how a workout affects your ability to perform at

very high intensity. You receive a value based on the anaerobic

contribution to EPOC and the type of activity. Repeated high-

intensity intervals of 10 to 120 seconds have a highly beneficial

impact on your anaerobic capability and result in an improved

anaerobic Training Effect.

It is important to know that your Training Effect numbers (from

0.0 to 5.0) may seem abnormally high during your first few

activities. It takes several activities for the device to learn your

aerobic and anaerobic fitness.

You can add Training Effect as a data field to one of your

training screens to monitor your numbers throughout the activity.

Color Zone Training Effect Aerobic Benefit Anaerobic

Benefit

From 0.0 to 0.9 No benefit. No benefit.

From 1.0 to 1.9 Minor benefit. Minor benefit.

From 2.0 to 2.9 Maintains your

aerobic fitness.

Maintains your

anaerobic

fitness.

From 3.0 to 3.9 Improves your

aerobic fitness.

Improves your

anaerobic

fitness.

From 4.0 to 4.9 Highly improves

your aerobic

fitness.

Highly improves

your anaerobic

fitness.

5.0 Overreaching

and potentially

harmful without

enough recovery

time.

Overreaching

and potentially

harmful without

enough recovery

time.

Training Effect technology is provided and supported by

Firstbeat Technologies Ltd. For more information, go to

www.firstbeat.com.

Heart Rate Variability and Stress Level

Stress level is the result of a three-minute test performed while

standing still, where the Descent device analyzes heart rate

variability to determine your overall stress. Training, sleep,

nutrition, and general life stress all impact how a runner

performs. The stress level range is from 1 to 100, where 1 is a

very low stress state and 100 is a very high stress state.

Knowing your stress level can help you decide if your body is

ready for a tough training run or yoga.

Viewing Your Heart Rate Variability and Stress Level

This feature requires a Garmin chest heart rate monitor. Before

you can view your heart rate variability (HRV) stress level, you

must put on a heart rate monitor and pair it with your device

(Pairing Your Wireless Sensors, page 32). If your Descent Mk1

device was packaged with a heart rate monitor, the devices are

already paired.

TIP: Garmin recommends that you measure your stress level at

approximately the same time and under the same conditions

every day.

If necessary, select > Add > HRV Stress to add the stress

app to the apps list.

Select Yes to add the app to your list of favorites.

From the watch face, select > HRV Stress > .

Stand still, and rest for 3 minutes.

Performance Condition

As you complete your activity, such as running or cycling, the

performance condition feature analyzes your pace, heart rate,

and heart rate variability to make a real-time assessment of your

ability to perform compared to your average fitness level. It is

approximately your real-time percentage deviation from your

baseline VO2 max. estimate.

Performance condition values range from -20 to +20. After the

first 6 to 20 minutes of your activity, the device displays your

performance condition score. For example, a score of +5 means

that you are rested, fresh, and capable of a good run or ride.

You can add performance condition as a data field to one of

your training screens to monitor your ability throughout the

activity. Performance condition can also be an indicator of

fatigue level, especially at the end of a long training run or ride.

NOTE: The device requires a few runs or rides with a heart rate

monitor to get an accurate VO2 max. estimate and learn about

your running or riding ability (About VO2 Max. Estimates,

page 16).

Viewing Your Performance Condition

This feature requires wrist-based heart rate or a compatible

chest heart rate monitor.

Add Perform. Cond. to a data screen (Customizing the Data

Screens, page 26).

Go for a run or ride.

After 6 to 20 minutes, your performance condition appears.

Scroll to the data screen to view your performance condition

throughout the run or ride.

Lactate Threshold

Lactate threshold is the exercise intensity at which lactate (lactic

acid) starts to accumulate in the bloodstream. In running, it is

the estimated level of effort or pace. When a runner exceeds the

threshold, fatigue starts to increase at an accelerating rate. For

experienced runners, the threshold occurs at approximately 90%

of their maximum heart rate and between 10k and half-marathon

race pace. For average runners, the lactate threshold often

occurs well below 90% of maximum heart rate. Knowing your

Heart Rate Features 17

Using Garmin Connect Training Plans

Before you can download and use a training plan from Garmin

Connect, you must have a Garmin Connect account (Garmin

Connect, page 10), and you must pair the Descent device with a

compatible smartphone.

From the Garmin Connect Mobile app, select Training >

Training Plans > Find a Plan.

Select and schedule a training plan.

Select , and follow the on-screen instructions.

Review the training plan in your calendar.

Adaptive Training Plans

Your Garmin Connect account has an adaptive training plan and

Garmin coach to fit your training goals. For example, you can

answer a few questions and find a plan to help you complete a 5

km race. The plan adjusts to your current level of fitness,

coaching and schedule preferences, and race date. When you

start a plan, the Garmin Coach widget is added to the widget

loop on your Descent device.

Interval Workouts

You can create interval workouts based on distance or time. The

device saves your custom interval workout until you create

another interval workout. You can use open intervals for track

workouts and when you are running a known distance.

Creating an Interval Workout

From the watch face, select .

Select an activity.

Hold MENU.

Select Training > Intervals > Edit > Interval > Type.

Select Distance, Time, or Open.

TIP: You can create an open-ended interval by selecting the

Open option.

Select Duration, enter a distance or time interval value for

the workout, and select .

Select BACK.

Select Rest > Type.

Select Distance, Time, or Open.

If necessary, enter a distance or time value for the rest

interval, and select .

Select BACK.

Select one or more options:

• To set the number of repetitions, select Repeat.

• To add an open-ended warm up to your workout, select

Warm Up > On.

• To add an open-ended cool down to your workout, select

Cool Down > On.

Starting an Interval Workout

From the watch face, select .

Select an activity.

Hold MENU.

Select Training > Intervals > Do Workout.

Select to start the timer.

When your interval workout has a warm up, select BACK to

begin the first interval.

Follow the on-screen instructions.

After you complete all of the intervals, a message appears.

Stopping an Interval Workout

• At any time, select BACK to stop the current interval or rest

period and transition to the next interval or rest period.

• After all intervals and rest periods are complete, select BACK

to end the interval workout and transition to a timer that can

be used for cool down.

• At any time, select to stop the timer. You can resume the

timer or end the interval workout.

Segments

You can send running or cycling segments from your Garmin

Connect account to your device. After a segment is saved to

your device, you can race a segment, trying to match or exceed

your personal record or other participants who have raced the

segment.

NOTE: When you download a course from your Garmin

Connect account, you can download all of the available

segments in the course.

Strava

™

Segments

You can download Strava segments to your Descent Mk1

device. Follow Strava segments to compare your performance

with your past rides, friends, and pros who have ridden the

same segment.

To sign up for a Strava membership, go to the segments widget

in your Garmin Connect account. For more information, go to

www.strava.com.

The information in this manual applies to both Garmin Connect

segments and Strava segments.

Viewing Segment Details

Select .

Select an activity.

Hold MENU.

Select Training > Segments.

Select a segment.

Select an option:

• Select Race Time to view the time and average speed or

pace for the segment leader.

• Select Map to view the segment on the map.

• Select Elevation Plot to view an elevation plot of the

segment.

Racing a Segment

Segments are virtual race courses. You can race a segment,

and compare your performance to past activities, others'

performance, connections in your Garmin Connect account, or

other members of the running or cycling communities. You can

upload your activity data to your Garmin Connect account to

view your segment position.

NOTE: If your Garmin Connect account and Strava account are

linked, your activity is automatically sent to your Strava account

so you can review the segment position.

Select .

Select an activity.

Go for a run or ride.

When you approach a segment, a message appears, and

you can race the segment.

Start racing the segment.

A message appears when the segment is complete.

Using Virtual Partner

Your Virtual Partner is a training tool designed to help you meet

your goals. You can set a pace for the Virtual Partner and race

against it.

NOTE: This feature is not available for all activities.

Hold MENU.

Select Settings > Activities & Apps.

Training 21

Select an activity.

Select the activity settings.

Select Data Screens > Add New > Virtual Partner.

Enter a pace or speed value.

Start your activity (Starting an Activity, page 6).

Select UP or DOWN to scroll to the Virtual Partner screen

and see who is leading.

Setting a Training Target

The training target feature works with the Virtual Partner feature

so you can train toward a set distance, distance and time,

distance and pace, or distance and speed goal. During your

training activity, the device gives you real-time feedback about

how close you are to achieving your training target.

From the watch face, select .

Select an activity.

Hold MENU.

Select Training > Set a Target.

Select an option:

• Select Distance Only to select a preset distance or enter

a custom distance.

• Select Distance and Time to select a distance and time

target.

• Select Distance and Pace or Distance and Speed to

select a distance and pace or speed target.

The training target screen appears and displays your

estimated finish time. The estimated finish time is based on

your current performance and the time remaining.

Select to start the timer.

Cancelling a Training Target

During an activity, hold MENU.

Select Cancel Target > Yes.

Racing a Previous Activity

You can race a previously recorded or downloaded activity. This

feature works with the Virtual Partner feature so you can see

how far ahead or behind you are during the activity.

NOTE: This feature is not available for all activities.

From the watch face, select .

Select an activity.

Hold MENU.

Select Training > Race an Activity.

Select an option:

• Select From History to select a previously recorded

activity from your device.

• Select Downloaded to select an activity you downloaded

from your Garmin Connect account.

Select the activity.

The Virtual Partner screen appears indicating your estimated

finish time.

Select to start the timer.

After you complete your activity, select > Save.

Personal Records

When you complete an activity, the device displays any new

personal records you achieved during that activity. Personal

records include your fastest time over several typical race

distances and longest run or ride.

NOTE: For cycling, personal records also include most ascent

and best power (power meter required).

Viewing Your Personal Records

Hold MENU.

Select History > Records.

Select a sport.

Select a record.

Select View Record.

Restoring a Personal Record

You can set each personal record back to the one previously

recorded.

Hold MENU.

Select History > Records.

Select a sport.

Select a record to restore.

Select Previous > Yes.

NOTE: This does not delete any saved activities.

Clearing a Personal Record

Hold MENU.

Select History > Records.

Select a sport.

Select a record to delete.

Select Clear Record > Yes.

NOTE: This does not delete any saved activities.

Clearing All Personal Records

Hold MENU.

Select History > Records.

NOTE: This does not delete any saved activities.

Select a sport.

Select Clear All Records > Yes.

The records are deleted for that sport only.

Clock

Setting an Alarm

You can set up to ten separate alarms. You can set each alarm

to sound once or to repeat regularly.

From the watch face, hold MENU.

Select Clock > Alarm Clock > Add Alarm.

Select Time, and enter the alarm time.

Select Repeat, and select when the alarm should repeat

(optional).

Select Sounds, and select a type of notification (optional).

Select Backlight > On to turn on the backlight with the alarm.

Select Label, and select a description for the alarm

(optional).

Deleting an Alarm

From the watch face, hold MENU.

Select Clock > Alarm Clock.

Select an alarm.

Select Delete.

Starting the Countdown Timer

From the watch face, hold MENU.

Select Clock > Timer.

Enter the time.

If necessary, select Restart > On to automatically restart the

timer after it expires.

22 Clock

If necessary, select Sounds, and select a type of notification.

Select Start Timer.

Using the Stopwatch

From the watch face, hold MENU.

Select Clock > Stopwatch.

Select to start the timer.

Select BACK to restart the lap timer .

The total stopwatch time continues running.

Select to stop both timers.

Select an option.

Setting Clock Alerts

From the watch face, hold MENU.

Select Clock > Alerts.

Select an option:

• To set an alert to sound a specific number of minutes or

hours before the actual sunset occurs, select Til Sunset >

Status > On, select Time, and enter the time.

• To set an alert to sound a specific number of minutes or

hours before the actual sunrise occurs, select Til Sunrise

> Status > On, select Time, and enter the time.

• To set an alert to sound every hour, select Hourly > On.

Syncing the Time with GPS

Each time you turn on the device and acquire satellites, the

device automatically detects your time zones and the current

time of day. You can also manually sync the time with GPS

when you change time zones, and to update for daylight saving

time.

From the watch face, hold MENU.

Select Clock > Sync With GPS.

Wait while the device locates satellites (Acquiring Satellite

Signals, page 35).

Navigation

Saving Your Location

You can save your current location to navigate back to it later.

Hold LIGHT.

Select .

Follow the on-screen instructions.

Editing Your Saved Locations

You can delete a saved location or edit its name, elevation, and

position information.

From the watch face, select > Navigate > Saved

Locations.

Select a saved location.

Select an option to edit the location.

Projecting a Waypoint

You can create a new location by projecting the distance and

bearing from your current location to a new location.

If necessary, select > Add > Project Wpt. to add the

project waypoint app to the apps list.

Select Yes to add the app to your list of favorites.

From the watch face, select > Project Wpt..

Select UP or DOWN to set the heading.

Select .

Select DOWN to select a unit of measure.

Select UP to enter the distance.

Select to save.

The projected waypoint is saved with a default name.

Navigating to a Destination

You can use your device to navigate to a destination or follow a

course.

From the watch face, select > Navigate.

Select a category.

Respond to the on-screen prompts to choose a destination.

Select Go To.

Navigation information appears.

Select to begin navigation.

Navigating to a Point of Interest

If the map data installed on your device includes points of

interest, you can navigate to them.

From the watch face, select .

Select an activity.

Hold MENU.

Select Navigation > Points of Interest, and select a

category.

A list of points of interest near your current location appears.

If necessary, select an option:

• To search near a different location, select Search Near,

and select a location.

• To search for a point of interest by name, select Spell

Search, enter a name, select Search Near, and select a

location.

Select a point of interest from the search results.

Select Go.

Navigation information appears.

Select to begin navigation.

Points of Interest

A point of interest is a place that you may find useful or

interesting. Points of interest are organized by category and can

include popular travel destinations such as gas stations,

restaurants, hotels, and entertainment venues.

Creating and Following a Course on Your

Device

From the watch face, select > Navigate > Courses >

Create New.

Enter a name for the course, and select .

Select Add Location.

Select an option.

If necessary, repeat steps 3 and 4.

Select Done > Do Course.

Navigation information appears.

Navigation 23

Select to begin navigation.

Creating a Round-Trip Course

The device can create a round-trip course based on a specified

distance and direction of navigation.

From the watch face, select .

Select Run or Bike.

Hold MENU.

Select Navigation > Round-Trip Course.

Enter the total distance for the course.

Select a direction heading.

The device creates up to three courses. You can select

DOWN to view the courses.

Select to select a course.

Select an option:

• To begin navigation, select Go.

• To view the course on the map and pan or zoom the map,

select Map.

• To view a list of turns in the course, select Turn By Turn.

• To view an elevation plot of the course, select Elevation

Plot.

Marking and Starting Navigation to a Man

Overboard Location

You can save a man overboard (MOB) location, and

automatically start navigation back to it.

TIP: You can customize the hold function of the keys to access

the MOB function (Customizing the Hot Keys, page 32).

From the watch face, select > Navigate > Last MOB.

Navigation information appears.

Navigating with Sight 'N Go

You can point the device at an object in the distance, such as a

water tower, lock in the direction, and then navigate to the

object.

From the watch face, select > Navigate > Sight 'N Go.

Point the top of the watch at an object, and select .

Navigation information appears.

Select to begin navigation.

Navigating to Your Starting Point During an

Activity

You can navigate back to the starting point of your current

activity in a straight line or along the path you traveled. This

feature is available only for activities that use GPS.

During an activity, select > Back to Start.

Select an option:

• To navigate back to the starting point of your activity along

the path you traveled, select TracBack.

• If you do not have a supported map or are using direct

routing, select Route to navigate back to the starting point

of your activity in a straight line.

• If you are not using direct routing, select Route to

navigate back to the starting point of your activity using

turn-by-turn directions.

Your current location , the track to follow , and your

destination appear on the map.

Navigating to the Starting Point of Your Last

Saved Activity

You can navigate back to the starting point of your last saved

activity in a straight line or along the path you traveled. This

feature is available only for activities that use GPS.

Select > Navigate > Back to Start > Route.

Turn-by-turn directions help you navigate to the starting point

of your last saved activity if you have a supported map or are

using direct routing. A line appears on the map from your

current location to the starting point of the last saved activity

if you are not using direct routing.

NOTE: You can start the timer to prevent the device from

timing out to watch mode.

Select DOWN to view the compass (optional).

The arrow points toward your starting point.

Stopping Navigation

During an activity, hold MENU.

Select Stop Navigation.

Map

Your device comes preloaded with maps and can display

several types of Garmin map data, including topographical

contours and nearby points of interest. To purchase additional

map data and view compatibility information, go to garmin.com

/maps.

represents your location on the map. When you are navigating

to a destination, your route is marked with a line on the map.

Viewing the Map

From the watch face, select > Map.

Hold MENU, and select an option:

• To pan or zoom the map, select Pan/Zoom.

TIP: You can select to toggle between panning up and

down, panning left and right, or zooming. You can hold

to select the point indicated by the crosshairs.

• To see nearby points of interest and waypoints, select

Around Me.

Saving or Navigating to a Location on the Map

You can select any location on the map. You can save the

location or start navigating to it.

From the map, hold MENU.

Select Pan/Zoom.

Controls and crosshairs appear on the map.

24 Navigation

Pan and zoom the map to center the location in the

crosshairs.

Hold to select the point indicated by the crosshairs.

If necessary, select a nearby point of interest.

Select an option:

• To start navigating to the location, select Go.

• To save the location, select Save Location.

• To view information about the location, select Review.

Navigating with the Around Me Feature

You can use the around me feature to navigate to nearby points

of interest and waypoints.

NOTE: The map data installed on your device must include

points of interest to navigate to them.

From the map, hold MENU.

Select Around Me.

Icons indicating points of interest and waypoints appear on

the map.

Select UP or DOWN to highlight a section of the map.

Select .

A list of points of interest and waypoints in the highlighted

map section appear.

Select to select a location.

Select an option:

• To start navigating to the location, select Go.

• To view the location on the map, select Map.

• To save the location, select Save Location.

• To view information about the location, select Review.

Compass

The device has a 3-axis compass with automatic calibration.

The compass features and appearance change depending on

your activity, whether GPS is enabled, and whether you are

navigating to a destination. You can change the compass

settings manually (Compass Settings, page 30). To open the

compass settings quickly, you can select from the compass

widget.

Altimeter and Barometer

The device contains an internal altimeter and barometer. The

device collects elevation and pressure data continuously, even

in low-power mode. The altimeter displays your approximate

elevation based on pressure changes. The barometer displays

environmental pressure data based on the fixed elevation where

the altimeter was most recently calibrated (Altimeter Settings,

page 30). To open the altimeter or barometer settings quickly,

select from the altimeter or barometer widgets.

History

History includes time, distance, calories, average pace or speed,

lap data, and optional sensor information.

NOTE: When the device memory is full, your oldest data is

overwritten.

Using History

History contains previous activities you have saved on your

device.

Hold MENU.

Select History > Activities.

Select an activity.

Select an option:

• To view additional information about the activity, select

Details.

• To select a lap and view additional information about each

lap, select Laps.

• To select an interval and view additional information about

each interval, select Intervals.

• To select an exercise set and view additional information

about each set, select Sets.

• To view the activity on a map, select Map.

• To view the impact of the activity on your aerobic and

anaerobic fitness, select Training Effect (About Training

Effect, page 17).

• To view your time in each heart rate zone, select Time in

Zone (Viewing Your Time in Each Heart Rate Zone,

page 25).

• To view an elevation plot of the activity, select Elevation

Plot.

• To delete the selected activity, select Delete.

Multisport History

Your device stores the overall multisport summary of the activity,

including overall distance, time, calories, and optional accessory

data. Your device also separates the activity data for each sport

segment and transition so you can compare similar training

activities and track how quickly you move through the

transitions. Transition history includes distance, time, average

speed, and calories.

Viewing Your Time in Each Heart Rate Zone

Before you can view heart rate zone data, you must complete an

activity with heart rate and save the activity.

Viewing your time in each heart rate zone can help you adjust

your training intensity.

Hold MENU.

Select History > Activities.

Select an activity.

Select Time in Zone.

Viewing Data Totals

You can view the accumulated distance and time data saved to

your device.

Hold MENU.

Select History > Totals.

If necessary, select an activity.

Select an option to view weekly or monthly totals.

Using the Odometer

The odometer automatically records the total distance traveled,

elevation gained, and time in activities.

Hold MENU.

Select History > Totals > Odometer.

Select UP or DOWN to view odometer totals.

Deleting History

Hold MENU.

History 25

Last sport: Displays a brief summary of your last recorded

sport.

Music controls: Provides music player controls for your

smartphone.

My day: Displays a dynamic summary of your activity today. The

metrics include timed activities, intensity minutes, floors

climbed, steps, calories burned, and more.

Notifications: Alerts you to incoming calls, texts, social network

updates, and more, based on your smartphone notification

settings.

Performance: Displays your current training status, training

load, VO2 max. estimates, recovery time, FTP estimate,

lactate threshold, and predicted race times.

Sensor information: Displays information from an internal

sensor or a connected ANT+ sensor.

Steps: Tracks your daily step count, step goal, and data for

previous days.

Surface Interval: Displays your surface interval time, tissue

load, and central nervous system (CNS) oxygen toxicity

percentage after a dive.

VIRB controls: Provides camera controls when you have a

VIRB device paired with your Descent device.

Weather: Displays the current temperature and weather

forecast.

Xero

™

bow sight: Displays laser location information when you

have a Xero bow sight paired with your Descent device.

Customizing the Widget Loop

You can change the order of widgets in the widget loop, remove

widgets, and add new widgets.

Hold MENU.

Select Settings > Widgets.

Select a widget.

Select an option:

• Select Reorder to change the location of the widget in the

widget loop.

• Select Remove to remove the widget from the widget

loop.

Select Add Widgets.

Select a widget.

The widget is added to the widget loop.

inReach Remote

The inReach remote function allows you to control your inReach

device using your Descent device. Go to buy.garmin.com to

purchase an inReach device.

Using the inReach Remote

Before you can use the inReach remote function, you must set

the inReach widget to be shown in the widget loop (Customizing

the Widget Loop, page 29).

Turn on the inReach device.

On your Descent device, select UP or DOWN from the watch

face to view the inReach widget.

Select to search for your inReach device.

Select to pair your inReach device.

Select , and select an option:

• To send an SOS message, select Initiate SOS.

NOTE: You should only use the SOS function in a real

emergency situation.

• To send a text message, select Messages > New

Message, select the message contacts, and enter the

message text or select a quick text option.

• To send a preset message, select Send Preset, and

select a message from the list.

• To view the timer and distance traveled during an activity,

select Tracking.

VIRB Remote

The VIRB remote function allows you to control your VIRB

action camera using your device. Go to www.garmin.com/VIRB

to purchase a VIRB action camera.

Controlling a VIRB Action Camera

Before you can use the VIRB remote function, you must enable

the remote setting on your VIRB camera. See the VIRB Series

Owner's Manual for more information. You must also set the

VIRB widget to be shown in the widget loop (Customizing the

Widget Loop, page 29).

Turn on your VIRB camera.

On your Descent device, select UP or DOWN from the watch

face to view the VIRB widget.

Wait while the device connects to your VIRB camera.

Select .

Select an option:

• To record video, select Start Recording.

The video counter appears on the Descent screen.

• To take a photo while recording video, select DOWN.

• To stop recording video, select .

• To take a photo, select Take Photo.

• To change video and photo settings, select Settings.

Controlling a VIRB Action Camera During an Activity

Before you can use the VIRB remote function, you must enable

the remote setting on your VIRB camera. See the VIRB Series

Owner's Manual for more information. You must also set the

VIRB widget to be shown in the widget loop (Customizing the

Widget Loop, page 29).

Turn on your VIRB camera.

On your Descent device, select UP or DOWN from the watch

face to view the VIRB widget.

Wait while the device connects to your VIRB camera.

When the camera is connected, a VIRB data screen is

automatically added to the activity apps.

NOTE: The VIRB data screen is not available for dive

activities.

During an activity, select UP or DOWN to view the VIRB data

screen.

Hold MENU.

Select VIRB Remote.

Select an option:

• To control the camera using the activity timer, select

Settings > Timer Start/Stop.

NOTE: Video recording automatically starts and stops

when you start and stop an activity.

• To control the camera using the menu options, select

Settings > Manual.

• To manually record video, select Start Recording.

The video counter appears on the Descent screen.

• To take a photo while recording video, select DOWN.

• To manually stop recording video, select .

• To take a photo, select Take Photo.

Using the Stress Level Widget

The stress level widget displays your current stress level and a

graph of your stress level for the last several hours. It can also

guide you through a breathing activity to help you relax.

Customizing Your Device 29

While you are sitting or inactive, select UP or DOWN to view

the stress level widget.

TIP: If you are too active for the watch to determine your

stress level, a message appears instead of a stress level

number. You can check your stress level again after several

minutes of inactivity.

Select to view a graph of your stress level for the last four

hours.

Blue bars indicate periods of rest. Yellow bars indicate

periods of stress. Gray bars indicate times that you were too

active to determine your stress level.

To start a breathing activity, select DOWN > , and enter a

duration for the breathing activity in minutes.

Customizing the Controls Menu

You can add, remove, and change the order of the shortcut

menu options in the controls menu (Viewing the Controls Menu,

page 1).

Hold MENU.

Select Settings > Controls.

Select a shortcut to customize.

Select an option:

• Select Reorder to change the location of the shortcut in

the controls menu.

• Select Remove to remove the shortcut from the controls

menu.

If necessary, select Add New to add an additional shortcut to

the controls menu.

Watch Face Settings

You can customize the appearance of the watch face by

selecting the layout, colors, and additional data. You can also

download custom watch faces from the Connect IQ store.

Customizing the Watch Face

Before you can activate a Connect IQ watch face, you must

install a watch face from the Connect IQ store (Connect IQ

Features, page 12).

You can customize the watch face information and appearance,

or activate an installed Connect IQ watch face.

From the watch face, hold MENU.

Select Watch Face.

Select UP or DOWN to preview the watch face options.

Select Add New to scroll through additional pre-loaded watch

faces.

Select > Apply to activate a pre-loaded watch face or an

installed Connect IQ watch face.

If using a pre-loaded watch face, select > Customize.

Select an option:

• To change the style of the numbers for the analog watch

face, select Dial.

• To change the style of the hands for the analog watch

face, select Hands.

• To change the style of the numbers for the digital watch

face, select Layout

• To change the style of the seconds for the digital watch

face, select Seconds.

• To change the data that appears on the watch face, select

Data.

• To add or change an accent color for the watch face,

select Accent Color.

• To change the background color, select Bkgd. Color.

• To save the changes, select Done.

Sensors Settings

Compass Settings

Hold MENU, and select Settings > Sensors & Accessories >

Compass.

Calibrate: Allows you to manually calibrate the compass sensor

(Calibrating the Compass Manually, page 30).

Display: Sets the directional heading on the compass to letters,

degrees, or milli-radians.

North Ref.: Sets the north reference of the compass (Setting the

North Reference, page 30).

Mode: Sets the compass to use electronic-sensor data only

(On), a combination of GPS and electronic-sensor data when

moving (Auto), or GPS data only (Off).

Calibrating the Compass Manually

NOTICE

Calibrate the electronic compass outdoors. To improve heading

accuracy, do not stand near objects that influence magnetic

fields, such as vehicles, buildings, and overhead power lines.

Your device was already calibrated at the factory, and the

device uses automatic calibration by default. If you experience

irregular compass behavior, for example, after moving long

distances or after extreme temperature changes, you can

manually calibrate the compass.

Hold MENU.

Select Settings > Sensors & Accessories > Compass >

Calibrate > Start.

Follow the on-screen instructions.

TIP: Move your wrist in a small figure eight motion until a

message appears.

Setting the North Reference

You can set the directional reference used in calculating

heading information.

Hold MENU.

Select Settings > Sensors & Accessories > Compass >

North Ref..

Select an option:

• To set geographic north as the heading reference, select

True.

• To set the magnetic declination for your location

automatically, select Magnetic.

• To set grid north (000º) as the heading reference, select

Grid.

• To set the magnetic variation value manually, select User,

enter the magnetic variance, and select Done.

Altimeter Settings

Hold MENU, and select Settings > Sensors & Accessories >

Altimeter.

Calibrate: Allows you to manually calibrate the altimeter sensor.

Auto Cal.: Allows the altimeter to self-calibrate each time you

turn on GPS tracking.

Elevation: Sets the units of measure for elevation.

Calibrating the Barometric Altimeter

Your device was already calibrated at the factory, and the

device uses automatic calibration at your GPS starting point by

default. You can manually calibrate the barometric altimeter if

you know the correct elevation.

Hold MENU.

Select Settings > Sensors & Accessories > Altimeter.

30 Customizing Your Device

Select an option:

• To calibrate automatically from your GPS starting point,

select Auto Cal., and select an option.

• To enter the current elevation, select Calibrate.

Barometer Settings

Hold MENU, and select Settings > Sensors & Accessories >

Barometer.

Calibrate: Allows you to manually calibrate the barometer

sensor.

Plot: Sets the time scale for the chart in the barometer widget.

Storm Alert: Sets the rate of barometric pressure change that

triggers a storm alert.

Watch Mode: Sets the sensor used in watch mode. The Auto

option uses both the altimeter and barometer according to

your movement. You can use the Altimeter option when your

activity involves changes in altitude, or the Barometer option

when your activity does not involve changes in altitude.

Pressure: Sets how the device displays pressure data.

Calibrating the Barometer

Your device was already calibrated at the factory, and the

device uses automatic calibration at your GPS starting point by

default. You can manually calibrate the barometer if you know

the correct elevation or the correct sea level pressure.

Hold MENU.

Select Settings > Sensors & Accessories > Barometer >

Calibrate.

Select an option:

• To enter the current elevation or sea level pressure, select

Yes.

• To calibrate automatically from your GPS starting point,

select Use GPS.

Map Settings

You can customize how the map appears in the map app and

data screens.

Hold MENU, and select Settings > Map.

Orientation: Sets the orientation of the map. The North Up

option shows north at the top of the screen. The Track Up

option shows your current direction of travel at the top of the

screen.

User Locations: Shows or hides saved locations on the map.

Auto Zoom: Automatically selects the zoom level for optimal

use of your map. When disabled, you must zoom in or out

manually.

Lock on Road: Locks the position icon, which represents your

position on the map, onto the nearest road.

Track Log: Shows or hides the track log, or the path you have

traveled, as a colored line on the map.

Track Color: Changes the track log color.

Detail: Sets the amount of detail shown on the map. Showing

more detail may cause the map to redraw more slowly.

Marine: Sets the map to display data in marine mode (Marine

Map Settings, page 31).

Draw Segments: Shows or hides segments, as a colored line

on the map.

Marine Map Settings

You can customize how the map appears in marine mode.

Hold MENU, and select Settings > Map > Marine.

Marine Chart Mode: Enables the nautical chart when displaying

marine data. This option displays various map features in

different colors so the marine POIs are more readable, and

so the map reflects the drawing scheme of paper charts.

Spot Soundings: Enables depth measurements on the chart.

Light Sectors: Shows and configures the appearance of light

sectors on the chart.

Symbol Set: Sets the chart symbols in marine mode. The

NOAA option displays the National Oceanic and Atmospheric

Administration chart symbols. The International option

displays the International Association of Lighthouse

Authorities chart symbols.

Showing and Hiding Map Data

If you have multiple maps installed on your device, you can

choose the map data to show on the map.

Select > Map.

Hold MENU.

Select the map settings.

Select Map > Configure Maps.

Select a map to activate the toggle switch, which shows or

hides the map data.

GroupTrack Settings

Hold MENU, and select Settings > GroupTrack.

Show on Map: Enables you to view connections on the map

screen during a GroupTrack session.

Activity Types: Allows you to select which activity types appear

on the map screen during a GroupTrack session.

Navigation Settings

You can customize the map features and appearance when

navigating to a destination.

Customizing Map Features

Hold MENU.

Select Settings > Navigation > Data Screens.

Select an option:

• Select Map to turn on or off the map.

• Select Guide to turn on or off the guide screen that

displays the compass bearing or course to follow while

navigating.

• Select Elevation Plot to turn on or off the elevation plot.

• Select a screen to add, remove, or customize.

Setting Up a Heading Bug

You can set up a heading indicator to display on your data

pages while navigating. The indicator points to your target

heading.

Hold MENU.

Select Settings > Navigation > Heading Bug.

Setting Navigation Alerts

You can set alerts to help you navigate to your destination.

Hold MENU.

Select Settings > Navigation > Alerts.

Select an option:

• To set an alert for a specified distance from your final

destination, select Final Distance.

• To set an alert for the estimated time remaining until you

reach your final destination, select Final ETE.

• To set an alert when you stray from the course, select Off

Course.

If necessary, select Status to turn on the alert.

If necessary, enter a distance or time value, and select .

System Settings

Hold MENU, and select Settings > System.

Customizing Your Device 31

Language: Sets the language displayed on the device.

Time: Adjusts the time settings (Time Settings, page 32).

Backlight: Adjusts the backlight settings (Changing the

Backlight Settings, page 32).

Sounds: Sets the device sounds, such as key tones, alerts, and

vibrations.

Do Not Disturb: Turns on or off do not disturb mode. Use the

Sleep Time option to turn on do not disturb mode

automatically during your normal sleep hours. You can set

your normal sleep hours on your Garmin Connect account.

Hot Keys: Allows you to assign shortcuts to device keys

(Customizing the Hot Keys, page 32).

Auto Lock: Allows you to lock the keys automatically to prevent

accidental key presses. Use the During Activity option to lock

the keys during a timed activity. Use the Not During Activity

option to lock the keys when you are not recording a timed

activity.

Units: Sets the units of measure used on the device (Changing

the Units of Measure, page 32).

Format: Sets general format preferences, such as the pace and

speed shown during activities, the start of the week, and

geographical position format and datum options.

Data Recording: Sets how the device records activity data. The

Smart recording option (default) allows for longer activity

recordings. The Every Second recording option provides

more detailed activity recordings, but may not record entire

activities that last for longer periods of time.

USB Mode: Sets the device to use mass storage mode or

Garmin mode when connected to a computer.

Restore Defaults: Allows you to reset user data and settings

(Restoring All Default Settings, page 35).

Software Update: Allows you to install software updates

downloaded using Garmin Express.

Time Settings

Hold MENU, and select Settings > System > Time.

Time Format: Sets the device to show time in a 12-hour, 24-

hour, or military format.

Set Time: Sets the time zone for the device. The Auto option

sets the time zone automatically based on your GPS position.

Time: Allows you to adjust the time if it is set to the Manual

option.

Alerts: Allows you to set hourly alerts, as well as sunrise and

sunset alerts that sound a specific number of minutes or

hours before the actual sunrise or sunset occurs.

Sync With GPS: Allows you to manually sync the time with GPS

when you change time zones, and to update for daylight

saving time.

Changing the Backlight Settings

Hold MENU.

Select Settings > System > Backlight.

Select an option:

• Select In-Dive.

• Select During Activity.

• Select Not During Activity.

Select an option:

• Select Mode to turn on the backlight at depth or

throughout your dive.

• Select Keys to turn on the backlight for key presses.

• Select Alerts to turn on the backlight for alerts.

• Select Gesture to turn on the backlight by raising and

turning your arm to look at your wrist.

• Select Timeout to set the length of time before the

backlight turns off.

• Select Brightness to set the brightness level of the

backlight.

Customizing the Hot Keys

You can customize the hold function of individual keys and

combinations of keys.

Hold MENU.

Select Settings > System > Hot Keys.

Select a key or combination of keys to customize.

Select a function.

Changing the Units of Measure

You can customize units of measure for distance, pace and

speed, elevation, weight, height, and temperature.

Hold MENU.

Select Settings > System > Units.

Select a measurement type.

Select a unit of measure.

Viewing Device Information

You can view device information, such as the unit ID, software

version, regulatory information, and license agreement.

Hold MENU.

Select Settings > About.

Viewing E-label Regulatory and Compliance

Information

The label for this device is provided electronically. The e-label

may provide regulatory information, such as identification

numbers provided by the FCC or regional compliance markings,

as well as applicable product and licensing information.

Hold MENU.

From the settings menu, select About.

Wireless Sensors

Your device can be used with wireless ANT+ or Bluetooth

sensors. For more information about compatibility and

purchasing optional sensors, go to buy.garmin.com.

Pairing Your Wireless Sensors

The first time you connect a wireless sensor to your device

using ANT+ or Bluetooth technology, you must pair the device

and sensor. After they are paired, the device connects to the

sensor automatically when you start an activity and the sensor is

active and within range.

If you are pairing a heart rate monitor, put on the heart rate

monitor (Putting On the Heart Rate Monitor, page 13).

The heart rate monitor does not send or receive data until

you put it on.

Bring the device within 3 m (10 ft.) of the sensor.

NOTE: Stay 10 m (33 ft.) away from other wireless sensors

while pairing.

Hold MENU.

Select Settings > Sensors & Accessories > Add New.

Select an option:

• Select Search All.

• Select your sensor type.

After the sensor is paired with your device, the sensor status

changes from Searching to Connected. Sensor data appears

in the data screen loop or a custom data field.

32 Wireless Sensors

Extended Display Mode

You can use Extended Display mode to display data screens

from your Descent device on a compatible Edge device during a

ride or triathlon. See your Edge owner's manual for more

information.

Using an Optional Bike Speed or Cadence

Sensor

You can use a compatible bike speed or cadence sensor to

send data to your device.

• Pair the sensor with your device (Pairing Your Wireless

Sensors, page 32).

• Set your wheel size (Wheel Size and Circumference,

page 40).

• Go for a ride (Starting an Activity, page 6).

Training with Power Meters

• Go to www.garmin.com/intosports for a list of ANT+ sensors

that are compatible with your device (such as Vector

™

• For more information, see the owner's manual for your power

meter.

• Adjust your power zones to match your goals and abilities

(Setting Your Power Zones, page 19).

• Use range alerts to be notified when you reach a specified

power zone (Setting an Alert, page 27).

• Customize the power data fields (Customizing the Data

Screens, page 26).

Using Electronic Shifters

Before you can use compatible electronic shifters, such as

Shimano

Di2

™

shifters, you must pair them with your device

(Pairing Your Wireless Sensors, page 32). You can customize

the optional data fields (Customizing the Data Screens,

page 26). The Descent Mk1 device displays current adjustment

values when the sensor is in adjustment mode.

Situational Awareness

Your Descent device can be used with the Varia Vision

™

device,

Varia

™

smart bike lights, and rearview radar to improve

situational awareness. See the owner's manual for your Varia

device for more information.

NOTE: You may need to update the Descent software before

pairing Varia devices (Updating the Software Using Garmin

Connect Mobile, page 11).

Foot Pod

Your device is compatible with the foot pod. You can use the

foot pod to record pace and distance instead of using GPS when

you are training indoors or when your GPS signal is weak. The

foot pod is on standby and ready to send data (like the heart

rate monitor).

After 30 minutes of inactivity, the foot pod powers off to

conserve the battery. When the battery is low, a message

appears on your device. Approximately five hours of battery life

remain.

Improving Foot Pod Calibration

Before you can calibrate your device, you must acquire GPS

signals and pair your device with the foot pod (Pairing Your

Wireless Sensors, page 32).

The foot pod is self-calibrating, but you can improve the

accuracy of the speed and distance data with a few outdoor runs

using GPS.

Stand outside for 5 minutes with a clear view of the sky.

Start a running activity.

Run on a track without stopping for 10 minutes.

Stop your activity, and save it.

Based on the recorded data, the foot pod calibration value

changes, if necessary. You should not need to calibrate the

foot pod again unless your running style changes.

Calibrating Your Foot Pod Manually

Before you can calibrate your device, you must pair your device

with the foot pod sensor (Pairing Your Wireless Sensors,

page 32).

Manual calibration is recommended if you know your calibration

factor. If you have calibrated a foot pod with another Garmin

product, you may know your calibration factor.

Hold MENU.

Select Settings > Sensors & Accessories.

Select your foot pod.

Select Cal. Factor > Set Value.

Adjust the calibration factor:

• Increase the calibration factor if your distance is too low.

• Decrease the calibration factor if your distance is too high.

Setting Foot Pod Speed and Distance

Before you can customize the foot pod speed and distance, you

must pair your device with the foot pod sensor (Pairing Your

Wireless Sensors, page 32).

You can set your device to calculate speed and distance using

your foot pod data instead of GPS data.

Hold MENU.

Select Settings > Sensors & Accessories.

Select your foot pod.

Select Speed or Distance.

Select an option:

• Select Indoor when you are training with GPS turned off,

usually indoors.

• Select Always to use your foot pod data regardless of the

GPS setting.

tempe

™

The tempe is an ANT+ wireless temperature sensor. You can

attach the sensor to a secure strap or loop where it is exposed

to ambient air, and therefore, provides a consistent source of

accurate temperature data. You must pair the tempe with your

device to display temperature data from the tempe.

Device Information

Descent Mk1 Specifications

Battery type Rechargeable, built-in lithium-ion battery

Descent Mk1 battery life Up to 12 days

Water rating 10 ATM* Dive (EN 13319)**

Operating and storage

temperature range

From -20º to 50ºC (from -4º to 122ºF)

Underwater operating

temperature range

From 0º to 40ºC (from 32º to 104ºF)

Charging temperature

range

From 0º to 45ºC (from 32º to 113ºF)

Wireless frequencies/

protocols

ANT+ 2.4 GHz @ -1 dBm nominal, Bluetooth

2.4 GHz @ 0 dBm nominal, Wi‑Fi 2.4 GHz

@ 12 dBm nominal

*The device withstands pressure equivalent to a depth of 100 m.

For more information, go to www.garmin.com/waterrating.

**Designed to comply with CSN EN 13319.

Device Information 33

If dashes appear instead of your step count, allow the device

to acquire satellite signals and set the time automatically.

My step count does not seem accurate

If your step count does not seem accurate, you can try these

tips.

• Wear the device on your non-dominant wrist.

• Carry the device in your pocket when pushing a stroller or

lawn mower.

• Carry the device in your pocket when actively using your

hands or arms only.

NOTE: The device may interpret some repetitive motions,

such as washing dishes, folding laundry, or clapping your

hands, as steps.

The step counts on my device and my Garmin

Connect account don't match

The step count on your Garmin Connect account updates when

you synchronize your device.

Select an option:

• Synchronize your step count with the Garmin Connect

application (Using Garmin Connect on Your Computer,

page 11).

• Synchronize your step count with the Garmin Connect

Mobile app (Manually Syncing Data with Garmin Connect

Mobile, page 11).

Wait while the device synchronizes your data.

Synchronizing can take several minutes.

NOTE: Refreshing the Garmin Connect Mobile app or the

Garmin Connect application does not synchronize your data

or update your step count.

The floors climbed amount does not seem accurate

Your device uses an internal barometer to measure elevation

changes as you climb floors. A floor climbed is equal to 3 m

(10 ft.).

• Avoid holding handrails or skipping steps while climbing

stairs.

• In windy environments, cover the device with your sleeve or

jacket as strong gusts can cause erratic readings.

My intensity minutes are flashing

When you exercise at an intensity level that qualifies toward

your intensity minutes goal, the intensity minutes flash.

Exercise for at least 10 consecutive minutes at a moderate or

vigorous intensity level.

Getting More Information

You can find more information about this product on the Garmin

website.

• Go to support.garmin.com for additional manuals, articles,

and software updates.

• Go to www.garmin.com/outdoor.

• Go to http://buy.garmin.com, or contact your Garmin dealer

for information about optional accessories and replacement

parts.

Appendix

Data Fields

%FTP: The current power output as a percentage of functional

threshold power.

%HRR: The percentage of heart rate reserve (maximum heart

rate minus resting heart rate).

10s Avg. Power: The 10-second moving average of power

output.

10s Avg Balance: The 10-second moving average of the left/

right power balance.

24-Hour Max.: The maximum temperature recorded in the last

24 hours from a compatible temperature sensor.

24-Hour Min.: The minimum temperature recorded in the last

24 hours from a compatible temperature sensor.

30s Avg. Power: The 30-second moving average of power

output.

30s Avg Balance: The 30-second moving average of the left/

right power balance.

3s Avg. Balance: The three-second moving average of the left/

right power balance.

3s Avg. Power: The 3-second moving average of power output.

500m Pace: The current rowing pace per 500 meters.

Aerobic TE: The impact of the current activity on your aerobic

fitness level.

Anaerobic TE: The impact of the current activity on your

anaerobic fitness level.

Average HR: The average heart rate for the current activity.

Average Pace: The average pace for the current activity.

Average Power: The average power output for the current

activity.

Average Swolf: The average swolf score for the current activity.

Your swolf score is the sum of the time for one length plus

the number of strokes for that length (Swim Terminology,

page 8). In open water swimming, 25 meters is used to

calculate your swolf score.

Avg. %HRR: The average percentage of heart rate reserve

(maximum heart rate minus resting heart rate) for the current

activity.

Avg. 500m Pace: The average rowing pace per 500 meters for

the current activity.

Avg. Ascent: The average vertical distance of ascent since the

last reset.

Avg. Balance: The average left/right power balance for the

current activity.

Avg. Cadence: Cycling. The average cadence for the current

activity.

Avg. Cadence: Running. The average cadence for the current

activity.

Avg. Descent: The average vertical distance of descent since

the last reset.

Avg. GCT Bal.: The average ground contact time balance for

the current session.

Avg. L. PP: The average power phase angle for the left leg for

the current activity.

Avg. L. PPP: The average power phase peak angle for the left

leg for the current activity.

Avg. Lap Time: The average lap time for the current activity.

Avg. Moving Speed: The average speed when moving for the

current activity.

Avg. Nautical Speed: The average speed in knots for the

current activity.

Avg. Overall Speed: The average speed for the current activity,

including both moving and stopped speeds.

Avg. PCO: The average platform center offset for the current

activity.

Avg. R. PP: The average power phase angle for the right leg for

the current activity.

36 Appendix

Avg. R. PPP: The average power phase peak angle for the right

leg for the current activity.

Avg. Speed: The average speed for the current activity.

Avg. Stride Len.: The average stride length for the current

session.

Avg. Strk/Len: The average number of strokes per pool length

during the current activity.

Avg. Strk Rate: Paddle sports. The average number of strokes

per minute (spm) during the current activity.

Avg. Vert. Osc.: The average amount of vertical oscillation for

the current activity.

Avg. Vert. Ratio: The average ratio of vertical oscillation to

stride length for the current session.

Avg Dist Per Stk: Swimming. The average distance traveled

per stroke during the current activity.

Avg Dist Per Stk: Paddle sports. The average distance traveled

per stroke during the current activity.

Avg GCT: The average amount of ground contact time for the

current activity.

Avg HR %Max.: The average percentage of maximum heart

rate for the current activity.

Balance: The current left/right power balance.

Battery Level: The remaining battery power.

Bearing: The direction from your current location to a

destination. You must be navigating for this data to appear.

Cadence: Cycling. The number of revolutions of the crank arm.

Your device must be connected to a cadence accessory for

this data to appear.

Cadence: Running. The steps per minute (right and left).

Calories: The amount of total calories burned.

Compass Hdg.: The direction you are moving based on the

compass.

Course: The direction from your starting location to a

destination. Course can be viewed as a planned or set route.

You must be navigating for this data to appear.

Dest. Location: The position of your final destination.

Dest. Wpt: The last point on the route to the destination. You

must be navigating for this data to appear.

Di2 Battery: The remaining battery power of a Di2 sensor.

Dist. Per Stroke: Paddle sports. The distance traveled per

stroke.

Dist. Remaining: The remaining distance to the final

destination. You must be navigating for this data to appear.

Distance: The distance traveled for the current track or activity.

Distance To Next: The remaining distance to the next waypoint

on the route. You must be navigating for this data to appear.

Elapsed Time: The total time recorded. For example, if you start

the timer and run for 10 minutes, then stop the timer for 5

minutes, then start the timer and run for 20 minutes, your

elapsed time is 35 minutes.

Elevation: The altitude of your current location above or below

sea level.

Estimated Total Distance: The estimated distance from the

start to the final destination. You must be navigating for this

data to appear.

ETA: The estimated time of day when you will reach the final

destination (adjusted to the local time of the destination). You

must be navigating for this data to appear.

ETA at Next: The estimated time of day when you will reach the

next waypoint on the route (adjusted to the local time of the

waypoint). You must be navigating for this data to appear.

ETE: The estimated time remaining until you reach the final

destination. You must be navigating for this data to appear.

Floors Climbed: The total number of floors climbed up for the

day.

Floors Descended: The total number of floors climbed down for

the day.

Floors per Minute: The number of floors climbed up per minute.

Front: The front bike gear from a gear position sensor.

GCT: The amount of time in each step that you spend on the

ground while running, measured in milliseconds. Ground

contact time is not calculated while walking.

GCT Balance: The left/right balance of ground contact time

while running.

Gear Battery: The battery status of a gear position sensor.

Gear Combo: The current gear combination from a gear

position sensor.

Gear Ratio: The number of teeth on the front and rear bike

gears, as detected by a gear position sensor.

Gears: The front and rear bike gears from a gear position

sensor.

Glide Ratio: The ratio of horizontal distance traveled to the

change in vertical distance.

Glide Ratio Dest.: The glide ratio required to descend from your

current position to the destination elevation. You must be

navigating for this data to appear.

GPS: The strength of the GPS satellite signal.

GPS Elevation: The altitude of your current location using GPS.

GPS Heading: The direction you are moving based on GPS.

Grade: The calculation of rise (elevation) over run (distance).

For example, if for every 3 m (10 ft.) you climb you travel

60 m (200 ft.), the grade is 5%.

Heading: The direction you are moving.

Heart Rate: Your heart rate in beats per minute (bpm). Your

device must be connected to a compatible heart rate monitor.

HR %Max.: The percentage of maximum heart rate.

HR Zone: The current range of your heart rate (1 to 5). The

default zones are based on your user profile and maximum

heart rate (220 minus your age).

Int. Avg. %HRR: The average percentage of heart rate reserve

(maximum heart rate minus resting heart rate) for the current

swim interval.

Int. Avg. %Max.: The average percentage of maximum heart

rate for the current swim interval.

Int. Avg. HR: The average heart rate for the current swim

interval.

Int. Distance: The distance traveled for the current interval.

Int. Max. %HRR: The maximum percentage of heart rate

reserve (maximum heart rate minus resting heart rate) for the

current swim interval.

Int. Max. %Max.: The maximum percentage of maximum heart

rate for the current swim interval.

Int. Max. HR: The maximum heart rate for the current swim

interval.

Int. Pace: The average pace for the current interval.

Int. Swolf: The average swolf score for the current interval.

Intensity Factor: The Intensity Factor

™

for the current activity.

Interval Lengths: The number of pool lengths completed during

the current interval.

Interval Time: The stopwatch time for the current interval.

Int Strk/Len: The average number of strokes per pool length

during the current interval.

Appendix 37

Int Strk Rate: The average number of strokes per minute (spm)

during the current interval.

Int Strk Type: The current stroke type for the interval.

L. Lap HR %Max.: The average percentage of maximum heart

rate for the last completed lap.

L. Lap Stk. Rate: Swimming. The average number of strokes

per minute (spm) during the last completed lap.

L. Lap Stk. Rate: Paddle sports. The average number of

strokes per minute (spm) during the last completed lap.

L. Lap Strokes: Swimming. The total number of strokes for the

last completed lap.

L. Lap Strokes: Paddle sports. The total number of strokes for

the last completed lap.

L. Lap Swolf: The swolf score for the last completed lap.

L. Len. Stk. Rate: The average number strokes per minute

(spm) during the last completed pool length.

L. Len. Stk. Type: The stroke type used during the last

completed pool length.

L. Len. Strokes: The total number of strokes for the last

completed pool length.

Lap %HRR: The average percentage of heart rate reserve

(maximum heart rate minus resting heart rate) for the current

lap.

Lap 500m Pace: The average rowing pace per 500 meters for

the current lap.

Lap Ascent: The vertical distance of ascent for the current lap.

Lap Balance: The average left/right power balance for the

current lap.

Lap Cadence: Cycling. The average cadence for the current

lap.

Lap Cadence: Running. The average cadence for the current

lap.

Lap Descent: The vertical distance of descent for the current

lap.

Lap Distance: The distance traveled for the current lap.

Lap Dist Per Stk: Swimming. The average distance traveled per

stroke during the current lap.

Lap Dist Per Stk: Paddle sports. The average distance traveled

per stroke during the current lap.

Lap GCT: The average amount of ground contact time for the

current lap.

Lap GCT Bal.: The average ground contact time balance for the

current lap.

Lap HR: The average heart rate for the current lap.

Lap HR %Max.: The average percentage of maximum heart

rate for the current lap.

Lap L. PP: The average power phase angle for the left leg for

the current lap.

Lap L. PPP: The average power phase peak angle for the left

leg for the current lap.

Lap NP: The average Normalized Power for the current lap.

Lap Pace: The average pace for the current lap.

Lap PCO: The average platform center offset for the current lap.

Lap Power: The average power output for the current lap.

Lap R. PP: The average power phase angle for the right leg for

the current lap.

Lap R. PPP: The average power phase peak angle for the right

leg for the current lap.

Laps: The number of laps completed for the current activity.

Lap Speed: The average speed for the current lap.

Lap Stride Len.: The average stride length for the current lap.

Lap Strk Rate: Swimming. The average number of strokes per

minute (spm) during the current lap.

Lap Strk Rate: Paddle sports. The average number of strokes

per minute (spm) during the current lap.

Lap Strokes: Swimming. The total number of strokes for the

current lap.

Lap Strokes: Paddle sports. The total number of strokes for the

current lap.

Lap Swolf: The swolf score for the current lap.

Lap Time: The stopwatch time for the current lap.

Lap Vert. Osc.: The average amount of vertical oscillation for

the current lap.

Lap Vert. Ratio: The average ratio of vertical oscillation to stride

length for the current lap.

Last Lap %HRR: The average percentage of heart rate reserve

(maximum heart rate minus resting heart rate) for the last

completed lap.

Last Lap Ascent: The vertical distance of ascent for the last

completed lap.

Last Lap Cad.: Cycling. The average cadence for the last

completed lap.

Last Lap Cad.: Running. The average cadence for the last

completed lap.

Last Lap Descent: The vertical distance of descent for the last

completed lap.

Last Lap Dist.: The distance traveled for the last completed lap.

Last Lap HR: The average heart rate for the last completed lap.

Last Lap NP: The average Normalized Power for the last

completed lap.

Last Lap Pace: The average pace for the last completed lap.

Last Lap Power: The average power output for the last

completed lap.

Last Lap Speed: The average speed for the last completed lap.

Last Lap Time: The stopwatch time for the last completed lap.

Last Len. Pace: The average pace for your last completed pool

length.

Last Len. Swolf: The swolf score for the last completed pool

length.

Lat/Lon: The current position in latitude and longitude

regardless of the selected position format setting.

Left PP: The current power phase angle for the left leg. Power

phase is the pedal stroke region where positive power is

produced.

Left PPP: The current power phase peak angle for the left leg.

Power phase peak is the angle range over which the rider

produces the peak portion of the driving force.

Lengths: The number of pool lengths completed during the

current activity.

LL 500m Pace: The average rowing pace per 500 meters for

the last lap.

L Lap Dist P Stk: Swimming. The average distance traveled per

stroke during the last completed lap.

L Lap Dist P Stk: Paddle sports. The average distance traveled

per stroke during the last completed lap.

Location: The current position using the selected position

format setting.

Max. Ascent: The maximum rate of ascent in feet per minute or

meters per minute since the last reset.

Max. Descent: The maximum rate of descent in meters per

minute or feet per minute since the last reset.

Max. Elevation: The highest elevation reached since the last

reset.

38 Appendix

Max. Lap Power: The top power output for the current lap.

Max. Nautical Speed: The maximum speed in knots for the

current activity.

Maximum Speed: The top speed for the current activity.

Max Power: The top power output for the current activity.

Min. Elevation: The lowest elevation reached since the last

reset.

Moving Time: The total time moving for the current activity.

Multisport Time: The total time for all sports in a multisport

activity, including transitions.

Muscle O2 Sat. %: The estimated muscle oxygen saturation

percentage for the current activity.

Nautical Dist: The distance traveled in nautical meters or

nautical feet.

Nautical Speed: The current speed in knots.

Next Waypoint: The next point on the route. You must be

navigating for this data to appear.

NP: The Normalized Power

™

for the current activity.

Off Course: The distance to the left or right by which you have

strayed from the original path of travel. You must be

navigating for this data to appear.

Pace: The current pace.

PCO: The platform center offset. Platform center offset is the

location on the pedal platform where force is applied.

Pedal Smooth.: The measurement of how evenly a rider is

applying force to the pedals throughout each pedal stroke.

Perform. Cond.: The performance condition score is a real-time

assessment of your ability to perform.

Power: The current power output in watts.

Power to Weight: The current power measured in watts per

kilogram.

Power Zone: The current range of power output (1 to 7) based

on your FTP or custom settings.

Rear: The rear bike gear from a gear position sensor.

Repeat On: The timer for the last interval plus the current rest

(pool swimming).

Reps: During a strength training activity, the number of

repetitions in a workout set.

Rest Timer: The timer for the current rest (pool swimming).

Right PP: The current power phase angle for the right leg.

Power phase is the pedal stroke region where positive power

is produced.

Right PPP: The current power phase peak angle for the right

leg. Power phase peak is the angle range over which the

rider produces the peak portion of the driving force.

Set Timer: During a strength training activity, the amount of time

spent in the current workout set.

Speed: The current rate of travel.

Stopped Time: The total time stopped for the current activity.

Stride Length: The length of your stride from one footfall to the

next, measured in meters.

Stroke Rate: Swimming. The number of strokes per minute

(spm).

Stroke Rate: Paddle sports. The number of strokes per minute

(spm).

Strokes: Swimming. The total number of strokes for the current

activity.

Strokes: Paddle sports. The total number of strokes for the

current activity.

Sunrise: The time of sunrise based on your GPS position.

Sunset: The time of sunset based on your GPS position.

Temperature: The temperature of the air. Your body

temperature affects the temperature sensor. You can pair a

tempe sensor with your device to provide a consistent source

of accurate temperature data.

Time in Zone: The time elapsed in each heart rate or power

zone.

Time of Day: The time of day based on your current location

and time settings (format, time zone, daylight saving time).

Timer: The current time of the countdown timer.

Time Seat.: The time spent seated while pedaling for the current

activity.

Time Seat. Lap: The time spent seated while pedaling for the

current lap.

Time Stand.: The time spent standing while pedaling for the

current activity.

Time Stand. Lap: The time spent standing while pedaling for

the current lap.

Time to Next: The estimated time remaining before you reach

the next waypoint in the route. You must be navigating for

this data to appear.

Torque Eff.: The measurement of how efficiently a rider is

pedaling.

Total Ascent: The total elevation distance ascended since the

last reset.

Total Descent: The total elevation distance descended since

the last reset.

Total Hemoglobin: The estimated muscle oxygen total for the

current activity.

TSS: The Training Stress Score

™

for the current activity.

V Dist to Dest: The elevation distance between your current

position and the final destination. You must be navigating for

this data to appear.

Vert. Spd.: The rate of ascent or descent over time.

Vertical Osc.: The amount of bounce while you are running.

The vertical motion of your torso, measured in centimeters for

each step.

Vertical Ratio: The ratio of vertical oscillation to stride length.

Vert Spd to Tgt: The rate of ascent or descent to a

predetermined altitude. You must be navigating for this data

to appear.

VMG: The speed at which you are closing on a destination along

a route. You must be navigating for this data to appear.

Work: The accumulated work performed (power output) in

kilojoules.

VO2 Max. Standard Ratings

These tables include standardized classifications for VO2 max. estimates by age and gender.

Males Percentile 20–29 30–39 40–49 50–59 60–69 70–79

Superior 95 55.4 54 52.5 48.9 45.7 42.1

Excellent 80 51.1 48.3 46.4 43.4 39.5 36.7

Good 60 45.4 44 42.4 39.2 35.5 32.3

Appendix 39

Males Percentile 20–29 30–39 40–49 50–59 60–69 70–79

Fair 40 41.7 40.5 38.5 35.6 32.3 29.4

Poor 0–40 <41.7 <40.5 <38.5 <35.6 <32.3 <29.4

Females Percentile 20–29 30–39 40–49 50–59 60–69 70–79

Superior 95 49.6 47.4 45.3 41.1 37.8 36.7

Excellent 80 43.9 42.4 39.7 36.7 33 30.9

Good 60 39.5 37.8 36.3 33 30 28.1

Fair 40 36.1 34.4 33 30.1 27.5 25.9

Poor 0–40 <36.1 <34.4 <33 <30.1 <27.5 <25.9

Data reprinted with permission from The Cooper Institute. For more information, go to www.CooperInstitute.org.

FTP Ratings

These tables include classifications for functional threshold

power (FTP) estimates by gender.

Males Watts per Kilogram (W/kg)

Superior 5.05 and greater

Excellent From 3.93 to 5.04

Good From 2.79 to 3.92

Fair From 2.23 to 2.78

Untrained Less than 2.23

Females Watts per Kilogram (W/kg)

Superior 4.30 and greater

Excellent From 3.33 to 4.29

Good From 2.36 to 3.32

Fair From 1.90 to 2.35

Untrained Less than 1.90

FTP ratings are based on research by Hunter Allen and Andrew

Coggan, PhD, Training and Racing with a Power Meter

(Boulder, CO: VeloPress, 2010).

Wheel Size and Circumference

Your speed sensor automatically detects your wheel size. If

necessary, you can manually enter your wheel circumference in

the speed sensor settings.

The tire size is marked on both sides of the tire. This is not a

comprehensive list. You can also measure the circumference of

your wheel or use one of the calculators available on the

internet.

Tire Size Wheel Circumference (mm)

20 × 1.75 1515

20 × 1-3/8 1615

22 × 1-3/8 1770

22 × 1-1/2 1785

24 × 1 1753

24 × 3/4 Tubular 1785

24 × 1-1/8 1795

24 × 1.75 1890

24 × 1-1/4 1905

24 × 2.00 1925

24 × 2.125 1965

26 × 7/8 1920

26 × 1-1.0 1913

26 × 1 1952

26 × 1.25 1953

26 × 1-1/8 1970

26 × 1.40 2005

26 × 1.50 2010

Tire Size Wheel Circumference (mm)

26 × 1.75 2023

26 × 1.95 2050

26 × 2.00 2055

26 × 1-3/8 2068

26 × 2.10 2068

26 × 2.125 2070

26 × 2.35 2083

26 × 1-1/2 2100

26 × 3.00 2170

27 × 1 2145

27 × 1-1/8 2155

27 × 1-1/4 2161

27 × 1-3/8 2169

29 x 2.1 2288

29 x 2.2 2298

29 x 2.3 2326

650 x 20C 1938

650 x 23C 1944

650 × 35A 2090

650 × 38B 2105

650 × 38A 2125

700 × 18C 2070

700 × 19C 2080

700 × 20C 2086

700 × 23C 2096

700 × 25C 2105

700C Tubular 2130

700 × 28C 2136

700 × 30C 2146

700 × 32C 2155

700 × 35C 2168

700 × 38C 2180

700 × 40C 2200

700 × 44C 2235

700 × 45C 2242

700 × 47C 2268

Symbol Definitions

These symbols may appear on the device or accessory labels.

Alternating current. The device is suitable for alternating current.

Direct current. The device is suitable for direct current only.

40 Appendix

Fuse. Indicates a fuse specification or location.

WEEE disposal and recycling symbol. The WEEE symbol is

attached to the product in compliance with the EU directive

2012/19/EU on Waste Electrical and Electronic Equipment

(WEEE). It is intended to deter the improper disposal of this

product and to promote reuse and recycling.

Appendix 41

Index

accessories 32, 33, 35, 36

activities 6, 7, 26, 28

custom 6, 7

favorites 6

saving 6

starting 6

activity tracking 19, 20

alarms 22, 26

alerts 23, 26, 27, 31

heart rate 13

altimeter 25, 30

calibrating 30

ANT+ sensors 32, 33

applications 9, 11, 12

smartphone 1

auto climb 28

Auto Lap 27

Auto Pause 28

auto scroll 28

backlight 1, 32

bands 34

barometer 25, 30, 31

calibrating 31

battery 34

charging 1

life 34

maximizing 10, 28, 35

bike sensors 33

Bluetooth sensors 32

Bluetooth technology 9, 10, 34

cadence 7, 13, 14

alerts 27

sensors 33

calendar 20, 21

calibrating

altimeter 30

compass 30

calorie, alerts 27

charging 1

cleaning the device 13, 34

clock 22, 23

compass 3, 25, 30, 31

calibrating 30

Connect IQ 12

connecting 10, 11

controls menu 1, 30

coordinates 23

countdown timer 22

courses

creating 23, 24

playing 8

selecting 8

customizing the device 26, 30, 32

data

pages 26

sharing 33

storing 10, 11

transferring 10, 11

uploading 11

data fields 12

deleting

all user data 34

history 25

personal records 22

distance 28

alerts 27, 31

diving 2–5, 34

dogleg 9

drills 8

extended display 33

fitness 17

foot pod 33

Garmin Connect 1, 9–11, 20, 21

storing data 11

Garmin Express 2, 11

updating software 2

GLONASS 31

goals 22

GPS 28, 31

signal 35

green view, pin location 9

ground contact time 13, 14

GroupTrack 11, 31

hazards 9

heading setting 31

heart rate 4, 12

alerts 13, 27

monitor 12–14, 16

pairing sensors 12

zones 15, 18, 19, 25

history 25

deleting 25

sending to computer 10, 11

indoor training 6, 7

inReach remote 29

intensity minutes 20, 36

intervals 8

workouts 21

jumpmaster 7

keys 1, 31, 32

customizing 28

lactate threshold 15, 17, 18

language 31

layup 9

lengths 8

LiveTrack 11

locations 23

deleting 23

editing 23

saving 23, 24

main menu, customizing 29

man overboard (MOB) 24

map 4, 24, 27, 31

map points. See points of interest (POI)

maps 26, 31

browsing 24

navigating 24

marine 31

measurements 9

measuring a shot 9

menu 1

metronome 7

MOB 24

multisport 6–8, 25

navigation 23, 25, 26, 31

Sight 'N Go 24

stopping 24

north reference 30

notifications 9, 10

phone calls 10

text messages 10

odometer 9, 25

pairing

ANT+ sensors 12

Bluetooth sensors 35

sensors 32

smartphone 1, 35

performance condition 15, 17

personal records 22

deleting 22

phone calls 10

points of interest (POI) 23, 25

power (force) 15

alerts 27

meters 16, 18, 33, 40

zones 19

profiles 6

user 18

projected finish time 17

racing 22

recovery 14–16

resetting the device 35

routes 23

settings 27

running dynamics 13, 14

satellite signals 35

saving activities 7

scorecard 9

screen 32

segments 21

settings 20, 26–32, 35

sharing data 33

shortcuts 1, 30

Sight 'N Go 24

skiing

alpine 7

snowboarding 7

sleep mode 20

smartphone 11, 12, 28, 34

applications 9, 11

pairing 1, 35

snowboarding 7

software

license 32

updating 2, 11

version 32

specifications 33

speed 28

speed and cadence sensors 33

statistics 9

stopwatch 4, 23

storing data 10, 11

stress level 17, 29

stress score 17

stride length 13, 14

strokes 8

sunrise and sunset times 23

swimming 8

swing analysis 9

swolf score 8

system settings 31

target 22

tempe 33, 35

temperature 33, 35

text messages 10

time

alerts 27

settings 32

zones and formats 32

time zones 23

timer 7, 25

countdown 22

tones 7, 22

42 Index

support.garmin.com

November 2018

190-02244-00_0B

Garmin Descent Mk1 Handleiding

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